Former Trump campaign chairman Paul Manafort on Wednesday filed a lawsuit challenging the broad authority of special counsel Robert Mueller, CNN reported.

The suit brought in a District Court in Washington, where Manafort and another former Trump campaign aide are charged, challenges Mueller's decision to charge Manafort with alleged crimes that they say have nothing to do with the 2016 campaign, but rather relate to lucrative lobbying work Manafort and his deputy did for a former Russia-friendly government in Ukraine.