One of the most important concepts in negotiation is that the minute you care, they sink their hooks in you and begin to leverage you.
If you look at DJT's negotiation style, going back to telling Kim his button was bigger and that Kim was facing nuclear war, he always starts with the worst case scenario and builds his negotiating position from there.
What he did today with Pelosi and Schumer was eliminate all of their leverage. He ended the meeting saying he would own the "government shutdown" and that he was comfortable doing it.
What they had planned to do was exit the meeting and make shut down the issue.
He took it off the table and said that's where we begin negotiating and and saying that he doesn't care if that's where we end up.
He now puts the burden on the dems to move away from that position.
He also tells them it's going to happen via the military whether they like it or not.
So fuck you, Nancy and Chuck. Play ball or lose bigger.