The Senate's budget framework is at odds with the House's approach, and both chambers ultimately have to be on the same page to get the legislation across the finish line.

Now the onus is on House Republicans to build enough support to advance their own party-line plan, or face pressure to back the Senate’s slimmer vision.

U.S. Senate Republicans will push ahead on Thursday with a measure to kickstart President Donald Trump's agenda on immigration, energy and defense, Majority Leader John Thune said on Wednesday, after Trump called on them to drop the plan in favor of a sweeping resolution prepared by House Republicans.