The U.S. Senate early Tuesday rejected an amendment from Senator Susan Collins that would have allowed the 2017 Trump-era tax cuts to lapse for the highest earners, restoring the top individual rate to 39.6% from 37%. The measure, aimed at individuals making more than $25 million and couples earning over $50 million, failed on a 22–78 vote. Eighteen Republicans broke ranks to support the proposal, while only four Democrats, including Georgia’s Jon Ossoff, voted in favor. Collins said the additional revenue would be used to double a $25 billion rural hospital fund contained in the broader Republican tax-and-immigration package now on the floor. The vote highlights strains within the Republican caucus as it pushes to pass the sweeping bill. Conservative advocacy group Club for Growth labeled Collins’s plan a “poison pill,” and former President Donald Trump privately cautioned lawmakers against raising taxes on the wealthy, even as he indicated he would not block such a change. Partisan sparring continued after the amendment’s defeat, with GOP lawmakers accusing Democrats of engineering historic tax increases and Democrats countering that Republicans’ underlying bill underfunds health-care priorities. Senate leaders have yet to set a time for a final vote on the overall legislation.