In an effort to win over Southern voters, Mitt Romney will campaign with comedian Jeff Foxworthy in Alabama and Mississippi Monday. Foxworthy, who is best known for his “you might be a redneck” jokes, will appear with Romney in Mobile, Ala. Later in the day, he will attend events in Biloxi and Richland, Miss. Tuesday’s primaries in Mississippi and Alabama are a key test for the former Massachusetts governor, who is hoping to show he can win over conservative voters. Polls show that Romney, former Sen. Rick Santorum (Pa.) and former House Speaker Newt Gingrich (Ga.) are in a dead...