Former presidential nominee Mitt Romney’s invitation-only Experts and Enthusiasts Summit is underway this weekend. Current Republican officeholders like Sens. John McCain and Lindsey Graham and House Speaker Paul Ryan will attend. And former Vice President Joe Biden will be a rare Democrat who takes part.

Considering the political division between conservatives and liberals — and within the Republican and Democratic parties themselves — what will be discussed at the summit? And what kind of impact could it have?

We discussed that with Jack Pitney, professor of American Politics at Claremont McKenna College.