TV Ad on the Gun Show Loophole The coalition launched a new television advertisement drawing attention to the bipartisan common ground that exists between all 3 presidential candidates when it comes to protecting Americans from crimes committed with illegal guns. Featured in the ad are Mayor John Peyton of Jacksonville, a McCain supporter; Mayor Sheila Dixon of Baltimore, an Obama supporter; Mayor Thomas Menino of Boston, a Clinton supporter; and Mayor Michael Bloomberg of New York, an undecided voter.