

3·
3 days agoIt usually requires a competent and well-known politician storming out of their party for ideological differences, but being locally popular enough to win their seat as an independent or new party.
It also usually causes the party they broke off from to lose higher offices a few times because the two sides of the schism don’t have enough power individually to win the bigger contests. Until one of them swallows the other.
The right avoided this by doing their “reform” from within, aka the Tea Party.
It takes years to get a new party off the ground and in a meaningful position to take federal offices at any significant rate. During that time, you are mostly helping your farthest opposition of the main parties win by splitting the vote.
This is literally why the Tea Party operated by internal change of the GOP and not by starting a third party. And love them or hate them, they were effective at shifting the GOP.