We would all be wise to remember in 2014 Chris McDaniel actually defeated Thad Cochran in the first GOP Mississippi primary. It was only after their initial defeat the GOPe decided to destroy anything that stood in their way - again, the retention of power was the ultimate motivator.
Even dickweed said that Trump would not be elected..that is something Tony Soprano would proclaim..not a sitting US president..dangerous times.
Definite possibility, however, so obvious it would foment revolution.