Even an emotional prosecution and a mess of a defense may not change the Senate math. But while so many of the facts around the second impeachment trial of former President Donald Trump are settled, a key question is emerging that could matter beyond final votes on conviction. For all that is established about what rioters did, why they did it and even what Trump said to seemingly encourage them, what the then-president did in the hours that the attack was ongoing is a key piece of the case being assembled by House managers. Guest: Senator Jeff Merkley (D-OR)