USA TODAYLandrieu's residency challengedAlexandria Town TalkSen. Mary Landrieu's residency in Louisiana is being questioned by her GOP rivals following a report that she does not have a home of her own in the state she has represented since 1997. The Washington Post reported Landrieu, one of the most vulnerable ...Residency Questions Roil Senate Race in LouisianaNew York TimesSen.