The US president last summer ordered the firing of Robert Mueller, the special prosecutor who is investigating whether there was collusion between his presidential campaign and Russia, according to US media<br /><br />► Subscribe to FT.com here:http://bit.ly/2GakujT<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
