Rs and Ds function effectively as a shared monopoly

"There is no longer any reason to not consider the formation of a new party."

Rs and Ds function effectively as a shared monopoly. Whatever approach you take, forming a new party, taking over a third, or trying to tame the wild elephant, the Establishment will put its considerable might into using or destroying you. You have to be big enough, rich enough, popular enough, fast enough they can't bury or compromise you.