“There was a lot of momentum building for Lamar’s effort, until the president changed his mind after encouraging him twice to move ahead,” Sen. Bob Corker (R-Tenn.) said. “You know, who knows where he’ll be? Maybe where he is this very second?”…

Tony Schwartz, a longtime student and now critic of Trump who co-wrote the mogul’s 1987 bestseller “The Art of the Deal,” said Trump’s dealmaking modus operandi is, “I am relentless and I am not burdened by the concern that what I’m doing is ethical or truthful or fair.”

“The expectation that you will stand by what you said you would do is higher in politics than it is in the cutthroat world of real estate,” Schwartz added. “That’s a brutal environment in which misdirection and bullying and making one offer and changing it later are all common practice.”