US House Speaker Rep. Nancy Pelosi rips up pages of the State of the Union speech after US President Donald Trump finishes his State of the Union address in the chamber of the US House of Representatives on February 4, 2020 in Washington, DC. (Mark Wilson/Getty Images/AFP)
What you need to know:
Trump was impeached by the Democratic-controlled House six weeks ago, and the flashpoint with Pelosi comes one day before the US Senate is all but certain to vote to acquit him on charges of abuse of power and obstruction of justice.
