A federal appeals court on Tuesday rejected former President Donald J. Trump’s claim that he was immune from prosecution on charges of plotting to subvert the results of the 2020 election‚ ruling that he must go to trial on a criminal indictment accusing him of seeking to overturn his loss to President Biden. The unanimous ruling‚ by a three-judge panel of the U.S. Court of Appeals for the District of Columbia Circuit‚ handed Mr. Trump a significant defeat. But it was unlikely to be the...