Democratic presidential candidate and former New York City Mayor Michael Bloomberg was trending on Twitter Tuesday morning, but not for reasons likely to help his campaign.Bloomberg is facing criticism over his defense of the city’s stop-and-frisk policy, which disproportionately targets people of color during police stops. Bloomberg had long defended the policy but reversed course and apologized for his support in November, just before he launched his presidential campaign. He released a new statement Tuesday amid the renewed backlash.