Robert Mueller is zeroing in on Trump's late-night calls to Roger Stone: report

Special counsel Robert Mueller is investigating late-night phone calls between then-candidate Donald Trump and his confidant Roger Stone during the 2016 election.

The Washington Post reported that Mueller has an apparent "keen interest" in those late-night chats as evidenced by statements in a draft document the newspaper received outlining alleged offenses by Stone's associate and "birther" conspiracist Jerome Corsi.

In the document, Mueller names Stone as an individual said to regularly be in contact with the Trump campaign, "including with then-candidate Donald J. Trump."

The Post reported earlier in the week that the inclusion of the president's name in the document worried his legal team because it showed just how closely Mueller was investigating "what Trump may have learned from Stone about WikiLeaks’ release of emails that prosecutors say were hacked by Russian intelligence operatives."