US investigators wiretapped former Trump campaign chairman Paul Manafort under secret court orders before and after the election, sources tell CNN, an extraordinary step involving a high-ranking campaign official now at the center of the Russia meddling probe.
The government snooping continued into early this year, including a period when Manafort was known to talk to President Donald Trump.
http://www.cnn.com/2017/09/18/politics/paul-manafort-government-wiretapped-fisa-russians/index.html