The legislative panel probing the assault on the US Capitol by a mob of then-president Donald Trump’s supporters alleged in a court filing Wednesday that he and his allies took part in a criminal conspiracy to overturn the 2020 election. The filing by the House of Representatives Select Committee seeks access to documents from rightwing lawyer John Eastman, who has refused to testify, citing attorney-client privilege. “The Select Committee…has a good-faith basis for concluding that the President and members of his Campaign engaged in a criminal conspiracy to defraud the United States,” the p…