Mitt Romney: “He's always self-editing in an odd way.”

When I was serving as Governor of Massachusetts, I would hear occasionally some stories that gave me some concern.

We should not be financing Gain-of-Function research.

I don't think I have had a better friend in the U.S. Senate than Senator Kyrsten Sinema. We are best friends. I would not have predicted that at the outset. By all appearance, we are about as different as we can be. But actually, our roots…

If there's a chance, we should do something. I think he's right. If you believe there's a one percent chance, we should do something.