Senate Majority Leader John Thune can afford to lose three Republican senators and still pass the bill, and there are more than that, right now, who have problems with it. Like the House, he will have to balance the concerns from moderate and conservative members of his conference.

As the House's budget bill moves to the Senate, here are some key Republican senators worth keeping an eye on.

Senate Republicans are staring down a collision course with the House as they weigh possible changes to the state and local tax (SALT) deduction cap as part of larger revisions to the party’s massive tax bill.

GOP leaders insist they aren't trying to end the 60-vote rule. Democrats warned that by ignoring the parliamentarian in this case, they are "going nuclear" on the filibuster.

California’s authority to set environmental rules that are tougher than national standards had never been challenged by Congress. Until now.

Senate GOP’s turn at ‘beautiful bill’ a challenge  Courts: No to religious charter school “Terrorism”: Officials probe embassy murders Trump: Putin isn’t ready to end

Senate Majority Leader John Thune and several other top GOP senators Tuesday pledged to vote to nix California's Clean Air Act emissions waiver.

The Republican-led Senate moved Wednesday to overturn key Biden-era waivers allowing California to set its own vehicle emissions, a major blow to that state’s effort to regulate pollution from cars and trucks that could have broad environmental impacts for the rest of the country.