Politics Donald Trump impeachment: Here's a timeline of the House inquiry Updated : December 19, 2019 09:22 AM IST US President Donald Trump has become the third president in US history to be impeached. Presidents Andrew Johnson and Bill Clinton were both impeached by the House but later acquitted by the Senate. Here are the key dates in the House impeachment inquiry into President Donald Trump. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.