"What would happen is the earth would move," said Matthew Crenson, a political science professor at Johns Hopkins University. "Elijah Cummings would be the only major candidate for Barbara Mikulski's seat who comes from the Baltimore area, and I think it very likely that he would pick up a lot of support, both African-American and white."
Johns Hopkins' Mr. Crenson said Mr. Cummings "might pose a challenge to Van Hollen in the Washington suburbs. Even though Donna Edwards has a lock on the vote in Prince George's, I think Cummings is widely respected and has great recognition. The only drawback is that he has a safe seat, which he would have to give up."