Welcome to Tax Watch, a new feature focused on the fight over tax reform and the push to extend the 2017 Trump tax cuts.

Republican senators dropped a banana peel in the path of House Republicans Thursday as they charged ahead with a budget resolution to fulfill President Trump’s wide-ranging agenda, which includes the extension of his 2017 tax cuts.

Senate Majority Leader John Thune (R-S.D.), Senate Finance Committee Chair Mike Crapo (R-Idaho) and others told Speak Mike Johnson (R-La.) and top tax writer Jason Smith (R-Mo.) they would only vote for a permanent, rather than temporary, extension of the 2017 tax cuts.

“We will not support a tax package that only provides temporary relief from tax hikes,” the senators wrote. “A temporary extension of these pro-growth and pro-family policies is a missed opportunity.”

A GOP aide told The Hill senators were concerned the House was rushing and would produce a “flawed product” in their push to deliver the “big, beautiful bill” preferred by Trump. GOP senators instead want to move on two separate bills to achieve their agenda.

“The House is rushing because the Senate moved before they did. There is a real, growing concern over here that the House is going to end up with a flawed product that won’t fully deliver on the president’s tax agenda,” a Senate GOP aide told The Hill.

— Tobias Burns