Marine Corps Lt. Gen. Francis Donovan assumes the post as the Trump administration seeks to reassert U.S. military dominance in the Western Hemisphere.
Voting could begin as soon as Tuesday, which would be day four of the partial shutdown. The Pentagon, among other agencies, saw its funding lapse Saturday.
The Senate voted to fund most of the government through the end of September after Trump made a deal with Democrats to carve out Homeland Security funding.