Tax breaks tallying more than 5 trillion - but also sizable reductions in Medicaid health care , food stamps for older Americans and green energy strategies to fight climate change - are all up for debate Tuesday as the House Republicans launch marathon public hearings on their "big, beautiful bill."
It's a long day and night ahead. Republicans are working to push President Donald Trump's signature legislative package through a gauntlet of committee hearings over mounting opposition from Democrats, advocacy groups and even some wary Republicans themselves.
Trump, speaking at an forum in the Middle East , struck an ambitious chord, saying Congress was "on the verge of passing the largest tax cut and regulation cut in American history."
"If we get that, that will be like a rocket ship for our country," Trump said in Saudi Arabia.
But to be sure, there are many more steps before the package becomes law.