The 100th Congress and the Veto Overrides of a New Senate Majority

The bill had already been vetoed once without a vote. In the autumn of 1986, Congress passed a renewal of the Clean Water Act without a single dissenting vote in either chamber, then adjourned for the election. President Ronald Reagan let it die by pocket veto, simply declining to sign it while Congress was out of session, which under the Constitution leaves no chance to override. He objected to the cost of its sewage plant grants. Then came the November 1986 elections, in which Democrats took back the Senate they had lost in 1980. When the 100th Congress convened in January 1987, the clean water bill was the first piece of legislation introduced in the House, numbered H.R. 1 to make the point. It passed again, by huge margins. Reagan vetoed it again at the end of January. And in the first week of February, the House and then the new Senate overrode him, both by votes so lopsided that the result was never in doubt. A new majority had announced itself with a bill about sewage, and it had done it with the help of dozens of Republicans.

In short: After Democrats won the Senate in 1986, the 100th Congress overrode President Reagan's vetoes on clean water in 1987, on a highway bill weeks later, and on the Civil Rights Restoration Act in 1988. Every override needed Republican votes, because two-thirds of both chambers is more than either party had. The lesson for a new majority facing a president of the other party is that the veto is beaten by building coalitions on popular bills, not by party discipline alone.

The math of an override

Start with the arithmetic, because it shapes everything else.

The Constitution lets Congress override a presidential veto by a two-thirds vote of each chamber. In the 100th Congress, Democrats held 55 of 100 Senate seats and a large House majority, but nowhere near two-thirds in the Senate. To override, they needed at least a dozen Republican senators every time (assuming every member voted). In the House, they needed dozens of Republicans as well.

So an override is not a party-line act. It is a coalition built on a specific bill, among members who agree on that bill even if they disagree about almost everything else. A new majority's power over a hostile president comes less from its numbers than from its choice of fights: picking bills that are popular enough, at home in enough districts, that the president's own party will not stand with him.

That lesson is easy to forget when the votes are counted on election night. The 100th Congress learned it in its first month.

Clean water: the override nobody could stop

The Clean Water Act of 1972 had itself become law over a veto, Richard Nixon's, on a bipartisan vote. By the 1980s, its central program paid for most of the cost of building municipal sewage treatment plants, which had cleaned up rivers and lakes that had been little better than open sewers. The Reagan administration wanted to phase out those grants faster and spend far less, arguing that local governments should bear more of the cost of their own sewer systems and that the federal deficit, then large, required cuts.

That was a real argument, and it had defenders. Spending on public works in an era of deficits is always a fair question.

But clean water was enormously popular, and every member had sewer plants in his or her district. The bill Congress passed did not just extend the old grants. It phased them out over several years and replaced them with state revolving loan funds, seeded with federal money, that would lend to cities for treatment plants and be repaid, so the funds could keep lending. That was a reform conservatives could support. The bill also created the first national program to control nonpoint source pollution, the runoff from farms, streets and construction sites that by then was a larger problem in many waterways than factory pipes. And it set requirements for stormwater discharges from cities and industry.

The Senate vote to override was 86 to 14. The House margin was even wider. Republicans from farm states, suburban districts and the Great Lakes voted against their president in large numbers. The Water Quality Act of 1987 became law, and the state revolving funds it created still finance water infrastructure across the country.

Highways, pork and one senator's change of heart

The second override was harder and stranger.

In the spring of 1987, Congress passed a highway and mass transit bill authorizing federal spending for several years. It included a provision popular in rural states that let them raise the speed limit on rural interstates to 65 miles per hour, up from the national 55 limit set during the 1970s oil crisis. It also included a long list of specific road and bridge projects earmarked for particular districts.

Reagan vetoed it in late March, calling it a budget-buster loaded with pork, and he campaigned personally against the override, including a rare trip to Capitol Hill to lobby Republican senators.

The House overrode easily. In the Senate, the first override vote fell one short. One of the senators voting to sustain the veto was a freshman Democrat, Terry Sanford of North Carolina, a former governor, who said he wanted more time to consider. Under heavy pressure from his party's leaders and from home, he changed his vote, and in a second vote the Senate overrode the veto with exactly the two-thirds needed. The bill became law in early April.

It is a less flattering story than clean water, and it should be told honestly. Some of the projects in that bill were exactly what critics said they were: favors for powerful members. Progressives who believe in public investment should still want it spent where it does the most good, not where the most senior member sits. The override won, but it did not settle the argument about earmarks, which has gone back and forth ever since.

Grove City and the Civil Rights Restoration Act

The most important override of the 100th Congress came in March 1988, and it began with a small Christian college in western Pennsylvania.

Grove City College took no direct federal money. Some of its students, however, received federal Basic Educational Opportunity Grants, now called Pell Grants. The federal government said that made the college a recipient of federal aid, required to sign a form promising to comply with Title IX of the Education Amendments of 1972, which bars sex discrimination in education programs receiving federal funds. The college refused, not because it wanted to discriminate, it said, but on principle against federal control.

In Grove City College v. Bell, decided in 1984, the Supreme Court held that the college was covered by Title IX through the student grants, but only in the specific program receiving the money, its financial aid office, not the institution as a whole. That narrow reading reached far beyond one small college. The same "program-specific" logic applied to the laws banning discrimination by race (Title VI of the Civil Rights Act of 1964), disability (Section 504 of the Rehabilitation Act) and age. A university could take federal research money in its chemistry department and discriminate freely in its athletic department.

Civil rights groups, women's groups and disability rights advocates spent four years pushing Congress to restore the broad reading. The Civil Rights Restoration Act of 1987 said that a federally funded institution's whole operation, not just the funded program, must comply with all four laws. It passed both chambers in early 1988.

Reagan vetoed it in March, arguing that it would extend federal power over churches, businesses, farms and small organizations that received even indirect federal aid, and he proposed an alternative. Some religious organizations campaigned hard against the bill on the same grounds, and their concerns deserve a fair hearing: the reach of federal civil rights law into religious institutions is a genuine question, and the bill included a provision protecting religiously controlled institutions whose tenets conflicted with specific requirements.

Congress overrode the veto within a week. The Senate vote was 73 to 24; the House vote was 292 to 133. Again, the override depended on Republicans; a substantial number in both chambers voted with Democrats. The law restored the broad coverage that civil rights enforcement had relied on and still governs today. Because Title IX once again reached a whole institution, it once again reached its athletic department.

The vetoes that held, and the bills that got through anyway

An honest account includes the fights the new majority lost, and how it sometimes won them anyway.

In 1988, Congress passed a large trade bill that included a requirement that employers give workers advance notice of plant closings and mass layoffs. Reagan vetoed it, objecting partly to the plant-closing provision. The House voted to override, but the Senate did not have the votes. So Democrats split the bill. They passed the trade measure without the notice requirement, which Reagan signed, and they passed the plant-closing notice, the Worker Adjustment and Retraining Notification Act, as a separate bill. It was popular, it was an election year, and Reagan let it become law without his signature in August 1988. Workers facing mass layoffs still get sixty days' notice under that law.

That maneuver shows a second kind of power a new majority has: not just overriding vetoes, but forcing a president to choose, in public, whether to veto a popular idea on its own.

The 100th Congress also passed significant laws Reagan signed willingly, which points to a third kind: the Fair Housing Amendments Act of 1988, which extended fair housing protections to people with disabilities and families with children and gave the law real enforcement teeth; and the Civil Liberties Act of 1988, under which the federal government formally apologized and paid reparations to Japanese Americans interned during World War II. Those were bipartisan laws, negotiated rather than forced, and they are part of the same record.

The leaders who counted the votes

Two men ran the 100th Congress, and their styles help explain its record.

In the Senate, the majority leader was Robert Byrd of West Virginia, who had held the job before, in the late 1970s, and then served as minority leader during Reagan's first six years. Byrd knew the Senate's rules better than almost anyone alive and used them to move legislation through a chamber where a few determined members can stall almost anything. He was also a fierce defender of the Senate's constitutional powers, against presidents of both parties.

In the House, the new Speaker was Jim Wright of Texas, who succeeded Tip O'Neill in January 1987. Wright was more aggressive than O'Neill about setting a Democratic agenda and pushing it through, and he used the Speaker's control of the floor to bring bills up quickly. His tenure ended early, in 1989, when he resigned amid an ethics investigation. The overrides of 1987 and 1988, though, came early in his speakership, when his drive to move bills fast suited a majority eager to show what it could do.

What it means for a majority facing a hostile president

Democrats won both the House and the Senate on November 3, 2026, and the new Congress is sworn in on January 3, 2027, with Donald Trump in the White House. The 100th Congress is a useful reference point, though conditions differ. The parties in 1987 were less polarized; there were liberal Republicans from the Northeast and conservative Democrats from the South, which made cross-party coalitions easier to assemble. Today, overrides are rarer.

Still, the logic holds. A veto is a political act as well as a legal one. A president who vetoes a bill that is popular in his own party's districts forces his allies to choose between him and their voters. Override votes, even ones that fail, put that choice on the record.

Here is the case I would make to a new majority. Pick bills where the policy is good and the support is broad: infrastructure, clean water, veterans' care, protections that working families in every district want. Write them carefully enough that members of the other party can defend their votes at home, the way the 1987 clean water bill traded old grants for revolving funds. And when a veto comes, make the override vote a real choice for every member, not a show for the cameras. The 100th Congress did not win every fight. It won the ones it chose well.

What you can do

• Track the cross-party bills. The common ground page shows bills both parties passed together. In a Congress facing vetoes, that list is where override coalitions start.
• Ask your members about vetoes before they happen. Use the representatives lookup to call your representative and senators. Ask whether they would vote to override a veto of a specific bill you care about. A member who has said yes in advance is harder to peel away.
• Check the polluters near you. The 1987 law was about the water you drink. The polluters page lists EPA-regulated facilities in your ZIP code, with their violations and penalties.
• Follow the new majority's strategy. Our pages on the new majority and Democrats in Congress follow what the incoming Congress chooses to fight about, and how.

The first act of the 100th Congress was a bill about sewage, numbered H.R. 1, passed over a president's objection by members of both parties. It was not glamorous. It still flows, quite literally, through treatment plants across the country. Sometimes the most powerful thing a new majority can do is pick the fight its opponents' own voters want it to win.