It could be a long road ahead as senators prepare to put their own imprint on the massive Republican package that cleared the House by a single vote.

Lawmakers are sprinting to pass the package by July 4, but it won't be easy to overcome concerns about spending and Medicaid impacts.

President Donald Trump worked the phones Monday and took to social media to try to sway Republican holdouts on his multi-trillion dollar tax bill, encountering conflicting demands from GOP senators even as he urged them to move swiftly.