United States Democrats began laying out a detailed case on Wednesday for the removal of the nation’s President, Donald Trump, accusing him at his historic Senate impeachment trial of seeking to cheat to ensure re-election in November. Adam Schiff, the head of the prosecution team from the House of Representatives, took the floor of the Senate for opening arguments after lawmakers were told by the sergeant-at-arms to remain silent “on pain of imprisonment.” “President Trump solicited foreign interference in our democratic elections, abusing the powers of his office to seek help from abroad to improve his re-election prospects at home,” the California lawmaker told a hushed chamber. “And when he was caught, he used the powers of that office to obstruct the investigation into his own misconduct,” said Schiff, who headed the probe that led to Trump’s December 18 impeachment by the Democratic-controlled House. Schiff shrugged off Republican arguments that American voters —...