The nonpartisan Congressional Research Service (CRS) released a paper internally that suggests President Donald Trump may have the authority to use Department of Defense resources to build a wall without obtaining congressional approval or declaring a state of emergency.
https://dailycaller.com/2019/01/24/trump-wall-no-state-of-emergency/
and a relevant Q drop from Dec 11th 2018
#2582
"You will not win?" - Pelosi
You didn't think the largest MIL spending bill in history (FY 2019) wasn't going to [indirectly] include funding for the wall did you?