Boston Mayor Michelle Wu, a frequent target of the Trump administration, advanced in Tuesday’s preliminary election and will face Josh Kraft, the son of the Patriots owner, in November.

Speaking to her cheering supporters Tuesday night, Wu repeatedly took aim at Trump as well as Kraft and said the results showed that Boston “was not for sale” and that the mayor should answer to the “people of Boston, not a handful of billionaire donors.”

"When we face attacks, whether from an administration in D.C. intent on crushing cities, or from those locally trying to roll back the progress we were making for everyone who calls Boston home, we will square our shoulders, lock our arms, and together we will march toward progress," she said.

Wu, the city’s first Asian and female leader, has been bolstered in part by her defense of the city against attacks from the Trump administration.

Members of the administration, often led by President Donald Trump’s border czar Tom Homan, have accused the city of not doing enough to crackdown on illegal immigration and threatened a surge in arrests.

Boston is commonly known as a sanctuary city, and Wu has repeatedly said she wants it to be a welcoming place for immigrants.

Just last week, Trump’s U.S. Department of Justice filed a lawsuit against Wu, the city of Boston and its police department over its sanctuary city policies, claiming they’re interfering with immigration enforcement.

In response, Wu accused Trump of “attacking cities to hide his administration’s failures.”

On Tuesday, the Department of Homeland Security put out a statement announcing the arrests of seven people as part of a crackdown in Massachusetts.

“Sanctuary policies like those pushed by Mayor Wu not only attract and harbor criminals but protect them at the peril of law-abiding American citizens," Assistant Secretary Tricia McLaughlin said in a statement.

Josh Kraft, a fellow Democrat and a nonprofit leader, injected millions of his own personal money into his campaign and set records for spending in a Boston mayoral preliminary election.

He has also been critical of Trump's attacks and has pushed Wu particularly hard on housing, saying she hasn’t done enough to increase options and affordability in Boston.

Speaking to supporters on Tuesday evening, Kraft said "Mayor Wu has shown that she doesn't want to talk about her record. She wants to talk about Donald Trump. And she wants to run against Donald Trump. She has tried to distract from her ineffectiveness on the issues that really matter to everyday Bostonians."