Opinion: The biggest mystery after dramatic Jan. 6 revelations https://ift.tt/jingVKI The House select committee investigating the January 6 Capitol riot broke new ground Thursday with two extremely dramatic moments. One was the extraordinary ending: the unanimous vote to subpoena former President Donald Trump to testify about his role in the riot. "We must seek the testimony under oath of Jan. 6's central player," Vice Chairwoman Liz Cheney said.