"He doesn't think before he speaks"

It was fascinating to watch Luntz's focus group of Republican voters this morning. About half of them said they've reconsidered and don't think they can vote for him if he doesn't start behaving himself. One woman said "He doesn't think before he speaks". Another said he is embarrassing her and the party. Alternatively, another woman said she doesn't care how he acts she won't vote for Hillary and won't give up her vote.

It was pointed out that Trump isn't a politician and has never run for office, so he doesn't know how to act (awww poor baby).

Several came around at the end and said that if Trump starts talking about the issues and stops attacking people they'll vote for him after all.

The conversation after that (Face the Nation) featured Rince Priebus making excuses for his candidate, talking about Trump as if he's a petulant child who just doesn't know how to control himself, but hey - he's learning!

I fail to see how, if Trump is having problems with the Republican base, he can dramatically shift perception (which takes time) and not only appease them but expand to minorities, etc. It just isn't going to happen.