David Axelrod: “The difference between them is that the Clinton campaign is in control of its open ground game.”

I think the darker interpretation of what we saw today is that they were setting up a pretext, he and the vice president for walking away from Ukraine and blaming Zelenskyy for it.

The place where it has influenced politics is in Canada. Now, Justin Trudeau is not -- he's stepping down. He's going to step down. But there's going to be an election in the next few days for the new Liberal Party leader and then there…

Unless the economy and his numbers rebound, Republicans are going to feel less willing to follow him blindly.

I think there's a lot of concern among Republican officeholders. Governor Pawlenty could speak more readily to this than me.