The former White House chief strategist expects a "firestorm of the lawfare will start next spring" for the former president, Mr. Bannon said during a Sunday episode of the podcast "Bannon's War Room," referring to the mounting legal issues which Mr. Trump faces at the moment.

If Trump can "walk through that fire," he can get "55 percent or more of the country."

And then, "if somehow it worked out [that] you could get Kennedy as a running mate - and I don't know, that is far from even technically can happen because of the structure of the Democratic and Republican parties and ballot access and all that - you could get 60 percent or higher in the country and win a massive landslide."