Trump's been reduced to feeding scraps of red meat to his permanent base, and a government shutdown is a carcass big enough to keep his junkyard dogs quiet, for a while. I'm afraid you're in one of the groups in his and their crosshairs...how does it feel to be ranked alongside ISIS in the esteem of "your" president? (Actually, I'd be proud of being on Trump's Enemies List. Hold your head high, guy!)

I'm not quite sure how Trump could actually bring about a government shutdown, unless he simply vetoes a budget bill, or pocket vetoes long enough to run out the clock. But I think if Congress manages to get its act together to put something together, they'd be mightily-pissed, to a veto-overriding degree, to be cockblocked so outrageously.

Could be that Trump's infantile bluster is the biggest thing working against him, in the case of a government shutdown. Or anything else that requires the collusion of Congress.