1. IMPEACHMENT RETURNS: Former President Donald Trump's historic second impeachment trial is set to start later this morning. Senators will begin by debating the other historic nature of the proceedings: the constitutionality of impeaching a former president. The arguments themselves follow on Wednesday. Same ending?: 45 of the 50 Senate Republicans are already on record saying it's unconstitutional to impeach a former president. Democrats would need 17 of them to convict Trump of inciting the Capitol riot, meaning it is almost certain he will receive a second acquittal. The real punishment: If Trump is surprisingly convicted, House Democrats have said they want to see him barred from ever running for office again (i.e. bye-bye 2024). Such punishment has only been applied to judges in the past, but could be done by a simple majority vote provided senators convict Trump first.