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Corey Lewandowski blamed the FBI for not informing the Trump campaign about former campaign manager Paul Manafort's shady business deals.

Special Counsel Robert Mueller introduced the first charges in the Russia investigation Monday, charging Manafort with 12 counts regarding his personal Russia-related business dealings, including conspiracy against the United States. Manafort replaced Lewandowski as campaign manager last year, but was also eventually pushed out of the campaign due to his Russia connections.

Later yesterday it was reported that former Trump campaign foreign policy advisor George Papadopoulos pleaded guilty to making false statements to the FBI regarding “the timing, extent and nature of his relationships and interactions with certain foreign nationals whom he understood to have close connections with senior Russian government officials,” according to court documents.

If Manafort was under a FISA warrant before joining the campaign, the FBI should have notified the campaign, Lewandowski said.

"Never was I contacted, never was the president (or candidate) contacted about any relationship that Paul Manafort might have had by a government authority," the former campaign manager remembered.

"You would think that just from a security standpoint that they would come and brief the campaign and say 'Look, we've got some concerns about this person,'" he continued.

He explained the campaign did not have the ability to do an extensive background check on Manafort.

"This has nothing to do with the president, and it goes on to show that there was no collusion or cooperation or coordination between the Trump campaign and Russia," Lewandowski said.

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