WASHINGTON - The U.S. Senate is engaged in a tense overnight session stretching into Tuesday, as Republican leaders scramble to secure support for President Donald Trump's sweeping bill of tax breaks and spending cuts. The legislation, formally titled the 'One Big Beautiful Bill Act,' faces significant opposition due to its proposed cuts to Medicaid and federal nutrition programs, as well as concerns over its impact on the national deficit [1][2].

The 940-page bill, which includes $4.5 trillion in tax cuts and $1.2 trillion in cuts to Medicaid and food stamps, has become a pivotal moment for Republicans who control Congress. They are racing to meet Trump's July 4 deadline, just days away [8][9].

Senate Majority Leader John Thune (R-S.D.) spent the night negotiating with party members, attempting to bridge the gap between those worried about the bill's Medicaid reductions and the conservative faction pushing for even deeper cuts to offset ballooning deficits [1][2].

'I have prevailed upon my Senate colleagues to please, please, please keep it as close to the House product as possible,' said House Speaker Mike Johnson (R-La.), signaling potential challenges when the bill returns to the House for final voting [8].

The Congressional Budget Office estimates the bill would increase the deficit by nearly $3.3 trillion over the decade, a figure that has fiscal hawks pressing for larger Medicaid cuts [6].

Democrats are using amendments to delay the process and highlight the bill's unpopularity. Polls have shown the measure to be deeply unpopular with voters [6][9].

Vice President JD Vance arrived at the Capitol, prepared to break a potential tie vote, underscoring the narrow margins Republicans are working with [2][4].

As the debate stretches into its third day, the fate of Trump's legislative centerpiece hangs in the balance. With eight major Republican holdouts, Thune can only afford to lose one more vote [7].

'I think so. Yeah, I hope it gets done,' said Sen. Roger Wicker (R-Miss.) when asked early Tuesday if the Senate can pass the bill [3].

As the Senate continues its marathon session, the nation watches to see if Republicans can unite to deliver on Trump's ambitious agenda, or if internal divisions and Democratic opposition will derail this significant legislative effort.