Just watched the mush mouth clip again. I think it might be false teeth.

[Stinky The Clown]

If you watch his bottom teeth, they seem to be pistoning up and down compared to his lower lip. The slur is much like the sound one would make as one's tongue were pressing down against one's lower front teeth.

[Freedomofspeech]

1. I think that he is drunk, high & insane.

[The Velveteen Ocelot]

2. I saw that mentioned elsewhere on the intertoobs.

You mean those pearly whites (the most beautiful teeth ever) aren't his? Oh, and his hands are really tiny and his combover isn't convincing anybody.

[pnwmom]

3. Yeah that's a common theory. Seems odd that he doesn't have implants, though.

The biggest best implants ever, to match his big beautiful hair.

[LeftInTX]

4. During the campaign, they showed his lower teeth and they were yellow

His uppers were capped.

I bet his yellow teeth were getting to him, but didn't have time to get them capped or whatever.

[kcr]

5. They don't look like dentures, though.

He's not just slurring his words. There were some odd speech patterns, and he was making some odd movements, and not just with his mouth. I still say stroke.

[pnwest]

6. Im on team dentures... looks like loose

dentures to me. Seriously in danger of flying out of his mouth a couple of times. And there a few sounds at the ends of words that sounded like loose dentures. Been around a few oldies, you know that sound when you hear it.