With a sense of history on the biggest political day -- to date -- of the 2012 cycle, Texas Gov. Rick Perry today compared the GOP's quest to defeat President Barack Obama to one of the deadliest battles of the D-Day landings in Normandy in 1944.

"It is a powerful moment in Americans' history, and you are on the front lines," he added. "This is Concord. This is Omaha Beach. This is going up the hill realizing that the battle is worth winning."