WASHINGTON (AP) – President Donald Trump has denigrated a majority-black district represented by a congressional nemesis as a “disgusting, rat and rodent infested mess,” broadening a campaign against prominent critics of his administration that has exacerbated racial tensions. Trump lashed out in tweets Saturday against Rep. Elijah Cummings, the powerful House Oversight Committee chairman, claiming his Baltimore-area district is “considered the worst run and most dangerous anywhere in the United States.” It was the president’s latest assault on a prominent lawmaker, and the people he represents, two weeks after he sparked nationwide controversy with racist tweets directed at four congresswomen of color. His comments against Cummings, who leads multiple investigations of the president’s governmental dealings, drew swift condemnation from Democrats, including would-be presidential rivals.