EXCLUSIVE — As Congress irons out reconciliation legislation to push through President Donald Trump‘s agenda, a conservative nonprofit organization is launching a paid media campaign imploring Republicans to keep current tax cuts.

House and Senate Republicans are barreling toward a showdown on how much extending President Trump's 2017 tax cuts should cost. A group of senators, led by Sen. Steve Daines (R-Mont.), today threatened to vote against any tax package that doesn't make all of Trump's 2017 Tax Cut and Jobs Act "permanent.

Senate Majority Leader John Thune (R-S.D.) and other top Republican senators vowed to only vote for a permanent, rather than temporary, extension of President Trump’s 2017 tax cuts, throwing a wrench into House Republicans’ efforts to advance their version of a bill containing the president’s legislative agenda.