McCain crosses picket line to appear on Leno.

Today, Sen. John McCain (R-AZ) and former New York City mayor Rudy Giuliani crossed a Writers Guild of America picket line for a joint appearance on The Tonight Show with Jay Leno. Former Massachusetts Mitt Romney, Rep. Ron Paul (R-TX), and former Arkansas governor Mike Huckabee also crossed the WGA picket line in the past month for apperances on Leno