With an almost constant flow of controversy coming out of the White House, the impeachment of Donald Trump does not seem completely out of the question. But what does it take to impeach a president? Has it happened before? We take a look at the history of impeachment, from Andrew Johnson to Bill Clinton
• Trump turmoil latest: lawyer says Cohen has information regarding Russian conspiracy - live ► to Guardian News on YouTube ► the Guardian ► Guardian ► Guardian YouTube network:
The Guardian ► www.youtube.com/theguardian
Owen Jones talks ► Football ► Sport ► Culture ► Science and Tech ►