It looks like the irrepressible Robert Cortese has picked a pet issue to back this election season: repealing San Jose’s fireworks ban. Two Tuesdays ago, the magnificently-coiffed karaoke king of San Jose-turned District 9 council candidate turned up at the San Jose City Council meeting. Sensing an infringement on every pyrotechnically inclined, red-blooded American’s right to handle gunpowder while partying, he pleaded for the council to change its ban on explosives. By the looks of his Facebook page, he’s also trying to drum up a grassroots effort to bring fireworks back to the city.