Manchin would if it were to his advantage. It's possible that at some point it could be, which is why he has not denied it (and possibly put the feelers out himself.) Sinema : no way. The Republican party of Arizona has a whole other thing going on, and she's plainly targeting a different demographic. The theory is that with all the Mexicans and South Americans, white votes won't matter any more. And those foreigners are not voting R.