Primary politics show: Texas and Ohio previews Nearly a month after Super Tuesday, Hillary Clinton and Barack Obama continue to battle for the Democratic nomination. Clinton supporters are hoping the crucial states of Ohio and Texas will revive her campaign and put a stop to Obama's momentum.9:06 a.m.
Allan Lichtman: political historian at American University in Washington, DC and author of several books, including "The Keys to the White House."
Wayne Slater: senior political writer for the Dallas Morning News and author of the book "Bush's Brain."
Connie Schultz: columnist for the Cleveland Plain Dealer.