Sen. Elizabeth Warren (D-Mass.) on Friday formally disavowed a super-PAC urging her to run for president, in a letter sent to the Federal Election Commission.
Warren has said numerous times she is not running for president in 2016 and has distanced herself from the group in past interviews.
The FEC told The Boston Globe Warren was under no legal obligation to file that type of letter.
"The Senator hopes this organization will focus its attention and energy on maintaining Democratic control of the U.S. Senate and not confuse donors about a non-existent run for president," her lawyers write in the letter.
The group Ready For Warren is an attempt to mirror the Ready for Hillary PAC, which has been successful in urging a number of lawmakers to give early endorsements of Clinton, who is seen as the likeliest Democratic candidate for president in 2016.
A spokesman for Ready for Warren PAC told The Globe the group plans to promote other Senate Democrats this November as well. It has just begun raising money.
The Chicago-based committee filed its papers with the FEC on Aug. 7 in order to raise unlimited amounts of money to make independent expenditures.