MSNBC's John Heilemann explains why Trump is just now realizing 'it's all starting to collapse-in' on him
President of the United States Donald Trump speaking at the 2017 Conservative Political Action Conference (CPAC) in National Harbor, Maryland. (Gage Skidmore/Flickr)

MSNBC national affairs analyst John Heilemann on Friday predicted "frightening" behavior from President Donald Trump before voters go to the polls on November 6 for the 2018 midterms.

"All of our legal analysts have incredibly important things to say, I'm going to be a psychoanalyst here for a second," Heilemann said on "Deadline: White House" with Nicolle Wallace.

"It's all now starting to collapse in on Trump. It's interesting that the reporting from this week, or at the end of this week, is that he is starting to finally see it," he noted.

"It took him a long time to get that these midterms were an existential threat for him," Heilemann continued. "If he lost the House, he could get impeached."

"He's now increasingly this Nixonian figure in the White House, he doesn't trust anybody in there but his family anymore," he continued. "All the people on the outside have turned against him, the [Bob] Woodward book, the op-ed -- the walls of the legal and political pressure are coming down on him, and the political jeopardy is acute enough that even he sees it."

President Trump realizing his legal jeopardy could have major ramifications during this fall's campaigns for the House and the Senate.

"I don't know what he's going to do between now and midterm election day, but it is going to be, I think, as extreme as some of his behavior has been, as we've seen over the last 19 months -- I think it's going to be more extreme than that and it's going to be quite frightening," he concluded.