"What I want to say is, is that OK?"
In spoken English these days, running together two "is"'s happens all the time and it bugs me. You'd never write it that way. Everybody does it--I've even heard President Obama do it.
"Let's get a quick check of traffic."
I hear this on the radio and on TV all the time. Is it really any quicker than if you left out the word "quick?" I think it is just a signal that the speaker is making to himself (herself) that s/he is under time pressure.
I'm glad I don't have to speak publicly for a living--I'd make these mistakes, and a LOT more!