David Gergen actually said...

"He can't afford probably to have somebody that they are as suspicious of as they are of him."

"Basically that no candidate arrives at the convention with enough delegates to win the first ballot."

"Absolutely."

"I think he unites Republicans on national security issues, first of all, because he seems vindicated, and he was the stalwart man of principle who supported a surge, and now it's turned out well."