Senator Elizabeth Warren is marking a social media milestone.

Warren's campaign committee says she now has more than 1 million fans on Facebook, reflecting her growing popularity.

Warren, who has been treated like a rockstar by the liberal wing of the Democratic Party, is using the milestone to again call for political donations.

In the email, Warren said she's already been able to raise nearly $3 million to help Democratic candidates across the country.

Warren has become a fundraising powerhouse for Democrats, who are hoping to retain control of the Senate in the midterm elections in November.

Despite calls from her most ardent supporters, the Cambridge resident has repeatedly said she's not interested in running for president in 2016.

[Associated Press]