A federal judge who recently blocked President Trump’s attempt to end an immigration parole program from the Biden era is under growing scrutiny not just for her ruling but also for her political affiliations and connections to a controversial organization with alleged ties to communist China.

U.S. District Judge Indira Talwani, appointed by President Barack Obama to the U.S. District Court for the District of Massachusetts in 2013, issued a decision stopping the Trump administration from terminating the CHNV program, which has granted temporary legal status to more than 500,000 migrants from Cuba, Haiti, Nicaragua, and Venezuela.

As conservatives voice concerns over the ruling, newly uncovered records are shedding more light on Judge Talwani’s political background—and drawing increased attention.

Public documents show that Talwani volunteered for at least four Democratic campaigns, including those of Deval Patrick, Barack Obama, Martha Coakley, and Elizabeth Warren. Her activities included door-to-door canvassing, phone banking, and holding campaign signs, with involvement in support of Obama’s 2008 presidential bid and Warren’s 2012 Senate run.

The documents were uncovered by Natalie Winters, a White House correspondent and co-host of Steve Bannon’s War Room podcast.