Rep. Steny Hoyer (D-MD) reads quotes from his Republican House colleagues who plan to vote in favor of impeachment against President Trump.

READ: The article of impeachment against Trump

CNN's Brian Todd looks at the reinforced security around the Capitol building as the second impeachment of President Donald Trump begins and the inauguration of President-elect Joe Biden approaches.

A week after the mob stormed the US Capitol leaving staff and members cowering in their offices, in their chambers and waiting out the siege in secure locations, the House will vote -- for the first time in history -- to impeach a sitting President twice.

The House is voting on the impeachment of President Donald Trump for inciting the riot at the US Capitol last week in a swift and bipartisan condemnation that would make Trump the first president in United States history to be impeached twice.

• Watch CNN Live | Read article of impeachment against Trump

We're looking at a second impeachment of President Donald Trump. The process will be different this time, both for the lawmakers sitting in judgment of Trump and for the man himself. One thing we know: He'll stay in office and likely finish out his term, because it takes a Senate conviction to remove him.

President-elect Joe Biden is pushing to keep impeachment from consuming his agenda and overshadowing the early days of his administration, as he tries to avoid the appearance of either promoting the proceedings or trying to stop them.