Because the “never Trump” part of the Republican party knows that a vote for anyone but Biden helps Trump.
And it’s probably not a huge percentage, but it is a percentage Trump is going to need to contend with. But that is why Trump’s campaign contributors are also funding RFK Jr’s campaign, as they need him to get the “never Trump” crowd.
Why would they vote Demonrat when they could vote libertarian or RFK Jr?
Because they know both of those options are terrible
These are Republicans we’re talking about. If terrible options were a disqualifier, then when would they ever vote?
Because the “never Trump” part of the Republican party knows that a vote for anyone but Biden helps Trump.
And it’s probably not a huge percentage, but it is a percentage Trump is going to need to contend with. But that is why Trump’s campaign contributors are also funding RFK Jr’s campaign, as they need him to get the “never Trump” crowd.
Also funny enough there is a wiki page: List of Republicans who oppose the Donald Trump 2024 presidential campaign
First person on that list when asked if he would vote for Biden: https://thehill.com/homenews/senate/4497046-romney-voting-trump-over-biden-absolutely-not/amp/