Trump impeachment inquiry: Pompeo subpoenaed by House Democrats bbc.com

US Secretary of State Mike Pompeo has been ordered by Democrats to turn over documents relating to the Trump administration's dealings with Ukraine.

In a letter, the heads of three House committees subpoenaed Mr Pompeo to produce the documents within a week.

It is the latest move in rapidly escalating impeachment proceedings against President Donald Trump.

He is being scrutinised for pushing Ukraine's president to investigate his Democratic rival Joe Biden.