Some of the intelligence collected includes communications that sparked concerns among investigators that Manafort had encouraged the Russians to help with the campaign, according to three sources familiar with the investigation.
http://www.cnn.com/2017/09/18/politics/paul-manafort-government-wiretapped-fisa-russians/index.html
http://www.cnn.com/2017/09/18/politics/paul-manafort-government-wiretapped-fisa-russians/index.html
