Treasury Secretary Steven Mnuchin arrives at the Capitol for a closed-door meeting with Senate Majority Leader Mitch McConnell, R-Ky, as they struggle to get a tax code overhaul, in Washington, Tuesday, Sept. 12, 2017. The as-yet-undrafted bill to overhaul the tax code is the top priority for Trump and Republicans after the collapse of their effort to dismantle Barack Obama's health care law. (AP Photo/J. Scott Applewhite)

Treasury Secretary Steven Mnuchin arrives at the Capitol for a closed-door meeting with Senate Majority Leader Mitch McConnell, R-Ky, as they struggle to get a tax code overhaul, in Washington, Tuesday, Sept. 12, 2017. The as-yet-undrafted bill to overhaul the tax code is the top priority for Trump and Republicans after the collapse of their effort to dismantle Barack Obama's health care law. (AP Photo/J. Scott Applewhite)