So when I rode with Rudy yesterday, it was hard to imagine what kind of reception he would receive. In fact, we had to get out of the motorcade and walk the final mile into the security checkpoint because of traffic tie-ups.

Rudy was up to the challenge.

But he needn't worry. I couldn't believe my eyes and ears, but literally every single Democrat -- many of them with badges indicating their delegate status -- cheered for him, shook his hand, posed for pictures, and told him how much they loved him.

I was fairly stunned.

It made me think about what a powerful vice-presidential running mate he would make for John McCain.

Besides Rudy's extraordinary bi-partisian popularity, he would give Hillary supporters a big reason to vote for McCain. I don't agree with his pro-choice position, but McCain is staunchly pro-life and Rudy's position would bring a ton of Democrats to the dance.

I know it's not conventional wisdom these days -- but John McCain could do a whole lot worse than picking Rudy.