The third party route is impossible in the US due to size. It has to done within and that is difficult enough
We’re happy to pick one or two off. Sen. John Cornyn would be a huge scalp in ‘26.
I disagree. If the “tea party” movement, for example, had been for real and state conventions of tea party members were held to nominate their GOP slates, enough of a force could be built to either take over or splinter and then replace the GOP IMO.
It would probably be a decade-long project, however.