So a couple untruths, and something ambiguous. Evangelicals have been a key voting bloc for years (I don't want to say Christians, because there are a huge number of Christian democrats too). If anything they're key to GOP success in the recent past.

But you kinda skipped past what I was asking. How and what do those voters think he was going to fix for good? And do they perceive themselves as being politically inactive except for just this once?

It sounds like you're just giving him a pass because hey, all politicians lie to get people to vote. At that point, why do we even care what a politician says, whether we agree with them or not?