He began negotiations with Democrats by promising a deal on DACA (a policy he rescinded) and no money for a border wall. When the next funding deadline came up, he broke his word and demanded leaders in Congress come up with a DACA compromise that included border wall funding, which he promised to sign. When they hammered out a deal and brought it to him, he refused. Now he seems to be digging in on border wall security and restricting legal immigration (which was never really on the table). He appears ready to shut the government down if he doesn’t get his way, whatever the hell that means anymore.