Is there a reason why the GOP is still considering placing Trump as their nominee?

This is not a question of being pro or anti Trump. And it has nothing to do with being pro or anti Biden.

Given that there are at least two states now refusing to allow Trump on a ballot, and the fact that there will likely be many more to follow, why would the GOP, as a whole, be so focused on selecting Trump as their nominee? They'd be handing the ejection to the Democratic party and likely Biden (which I'm not a big fan of anyway).

Wouldn't it make sense to select a nominee that can run in all 50 states and be recognized as President in all 50 states?

Is there a reason why the GOP is still considering placing Trump as their nominee?
Is there a reason why the GOP is still considering placing Trump as their nominee?
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