Trump is the first US president to be impeached twice but it does not automatically remove him from office. For that to happen, he must be convicted by the Senate.
And, like all things, there's a process.
First, the House of Representatives needed to vote on the articles of impeachment as it did in 2019 when it formally charged Trump with abuse of power and obstruction of Congress. That has now happened, with 10 Republicans breaking ranks in a 232-197 vote.
The second step is a trial in the Senate where a two-thirds majority — 67 of 100 senators — need to agree to obtain a conviction.
Last time the numbers were in the President's favour and he was acquitted by the Republican-led Senate.