(John Minchillo | AP file photo) This photo from Saturday, June 14, 2014, in New York, shows anti-gun demonstrators — underwritten by former New York Mayor Michael Bloomberg, with signs calling for tougher gun control laws as they march across the Brooklyn Bridge in New York. Bloomberg co-founded Mayors Against Illegal Guns — now part of his Everytown for Gun Safety advocacy group, and has given millions of dollars to pro-gun control candidates.