President Donald Trump, buoyed by a pair of special election wins for House Republicans on Tuesday, celebrated Wednesday at a campaign rally Cedar Rapids, Iowa, before a raucous and adoring crowd. He defended his administration, castigated the press, mocked Democrats, boasted of his achievements so far and praised his supporters.In remarks that stretched for over an hour, Trump — appearing relaxed and at ease — even floated a twist to his signature policy idea, one that he had only previously offered to lawmakers at the White House.