“I think there’s actually a pretty good chance to get a deal,” [White House budget director Mick Mulvaney] added. “It’s just Murray-Alexander in its current form probably isn’t far enough yet.”

Then it's not bipartisan. Murray-Alexander is the best to come out of months long negotiation. Congress should just pass it after the CBO analyses it. If it meets the satisfaction of Congress, then let's see if the President signs it. The president is confused on this issue. A bill to sign will help him make up his mind. There are only two boxes to check - yes or no.