VULNERABLE INCUMBENT MARY LANDRIEU (D-LA) now facing residency questions. “Landrieu doesn’t own a home in Louisiana, but is registered to vote at her parents’ home in New Orleans. She does, however, own a $2.5 million house in Washington, which she and her husband built. That address is listed on the statement of candidacy she filed with the Federal Election Commission in January, but the senator listed her parents’ New Orleans home when she submitted forms to qualify for the ballot last week.”