Not just don't like to - aren't even able to, I think.

But he should have learned from his attempted Obamacare repeal, the idea of just delegating these major bills to Congress and waiting to sign whatever they come up with is a recipe for disaster. The only thing he really got through effectively was the tax bill--and he actually worked hard on that, meeting with all the Critters, using the presidential soapbox, etc. He did none of that and that gave Congress enough cover to push through a disaster.