The reports have also claimed that Manafort and Trump continued to have conversations even after Manafort was out of the campaign and that the conversations continued even after Donald Trump took oath as the President of the country. Manfort was being wiretapped during a period when he was known to be in communication with Trump, and it's possible that the president was picked up during the surveillance. According to sources, the new warrant was issued in an effort by the FBI to investigate ties between Trump campaign associates and suspected Russian operatives.
The surveillance was ended at some point a year ago because of a lack of evidence, one source told CNN, but investigators obtained another warrant at some point during the presidential campaign.
Donald Trump's former campaign manager Paul Manafort. Among the most aggressive moves was a July 26 raid on Manafort's home in Virginia, in which F.B.I. agents searched the former political operative's property for evidence related to the Russian Federation probe on the same day Manafort was set to testify before the Senate Judiciary Committee.
What remains uncertain is whether Trump himself was recorded in any of this surveillance. Kremlin spokesman Dmitry Peskov stressed that Russian Federation did not cooperate with President Trump's staff during the election campaign.
But at this point, the news becomes less rosy for Trump supporters.
Just five months after President Trump tweeted about the alleged wiretapping of his phones by the last US Administration, a CNN report emerged claiming that the Federal Bureau of Investigation tapped Trump's former campaign chairman Paul Manafort before and after the 2016 presidential elections.
That warrant was reportedly ended in 2016, but the Federal Bureau of Investigation obtained a second warrant soon after that, which lasted until early 2017, including periods when Manafort was speaking with Trump. Mr Manafort is said to be facing an indictment. That warrant involved the bureau's investigation into suspected collision between Trump's campaign and the Russian government. At the same time, he appears to be taking a broad view of his mandate: examining not just the Russian disruption campaign and whether any of Mr. Trump's associates assisted in the effort, but also any financial entanglements with Russians going back several years.
There have been allegations that he may have violated IRS laws as well, and he is one subject of special counsel Robert Mueller's Department of Justice Russia probe.
"The tactic that Mueller is using - telling Manafort that he will be charged - is generally used when prosecutors are trying to get a defendant to 'flip, '" said Mariotti.