US House Speaker Nancy Pelosi and Senate Democratic Leader Chuck Schumer have called for the urgent removal of President Donald Trump from power. "This is an emergency of the highest magnitude," Pelosi said Thursday following violence at the US Capitol a day earlier, branding Trump "a very dangerous person who should not continue in office." She called on Vice President Mike Pence and Trump's cabinet to invoke the 25th amendment which allows for a cabinet majority to remove a president deemed unable to discharge his duties.