I've said it before, and I will say it again, unless you are in the top 1% of the wealthiest Americans (and even then, really), a vote for Republicans is a vote against self-interest. I have yet, ever, to find a positive idea proposed by a Republican leader (oh, let's limit it to the last half-century). It is not the party of "no" - it is the party of "never" "nix" "not yet" "let's go back" and "remember when...?" even though "when" never existed.
Just the idea that there is somebody who wants less government is enough. It may be just talk, but the idea is the only thing keeping America from a socialist dictatorship, or at the very least a Euro-quasi socialist society.