Bernie Sanders raised more than one million dollars yesterday.

Presidential hopeful Bernie Sanders has seen an uptick in fundraising, bringing in more than $1 million on Friday alone, amid his campaign’s dust-up with the Democratic National Committee, according to a person directly familiar with the campaign’s finances.

Sanders on Friday was dealing with the fallout of a story that usually wouldn’t be considered good news: accusations that several staffers inappropriately accessed a DNC-controlled voter file and viewed proprietary information collected by the party’s front-runner, Hillary Clinton.

But Friday afternoon, the Sanders campaign went on offense against the DNC, claiming that it had vastly overreacted by shutting off the campaign’s access to the voter file -- including information that Sanders’s team had amassed itself.

Sanders’s campaign manager, Jeff Weaver, held a defiant news conference in Washington, where he claimed the DNC was actively undermining Sanders’s campaign, and then Sanders filed a federal lawsuit. (It was resolved -- at least for the time being -- early Saturday morning.)