Democrat says plans will proceed unless Pence and cabinet agree to oust Trump by invoking the 25th Amendment, declare president incapable of executing the duties of his office

Pat Toomey joins Lisa Murkowski in calling for US president to step down as Democratic House Speaker Pelosi notifies colleagues to prepare for impeachment move this week

Jake Angeli and Adam Johnson hit with violent entry and other charges; dozens more held in deadly storming of US Capitol; officials say many more cases being probed

Mitch McConnell has informed senators that without unanimous consent, January 20 is likely the earliest a trial could begin, overshadowing start of Biden administration

The president has the sole authority to order a US nuclear attack, but some safeguards do exist

Democrats seeking decisive, immediate action to ensure an 'unhinged' commander in chief can't cause more damage

Resolution circulated by Dems says US president betrayed trust by actions this week, 'gravely endangered' national security; Murkowski first GOP senator to call on Trump to resign

Democrats question US president's mental state and accuse him of fomenting the storming of Capitol, looking for safeguards to prevent Trump launching military, nuclear strikes

'Everyone knows that this president is deranged,' says Rep. James Clyburn; House move could come next week if Pence refuses to invoke 25th Amendment to remove Trump

'This unhinged president could not be more dangerous,' House speaker says as Democrats meet to consider impeaching Trump for inciting riot on Capitol