His record speaks for itself. The man who calls himself a master dealmaker has never found a way to broker an agreement with Democrats to give him money for a border wall that, in 2016, he promised to build with funding from Mexico. Having lost the most recent appropriations battle with House Democrats after a 35-day government shutdown, he declared a national emergency as a way to unlock funds elsewhere.

Last year, Trump and his Department of Homeland Security (DHS) were responsible for one of the biggest policy debacles of his presidency, the decision to separate children from their parents at the border. The ensuing backlash, which cut across party lines, eventually forced a reversal. The government is still trying to sort out what it wrought.

More recently, faced with a border that has been overwhelmed with asylum seekers from Central America, he threatened to shut it all down. When businesses and his fellow Republicans protested that this would have damaging economic effects, he backed off.

This past week, he ran a buzz saw through the upper ranks of DHS, decimating the leadership there, including the ouster of Kirstjen Nielsen, the DHS secretary he had appointed.