'It is a stain on our country': Elizabeth Warren joins protest outside child detention facility in Florida

Sen. Elizabeth Warren, one of the frontrunners for the 2020 Democratic presidential nomination, joined a protest in front of a migrant detention center Wednesday morning—hours before she was expected to join nine other members of her party for the first primary debate.

"There are a lot of different ways that we get in the fight," Warren said to supporters on social media. "And one of them is that you show up."

Warren's appearance at the Homestead Detention Center was prompted by a question during a town hall the night before from an audience member who asked the Massachusetts senator if she would join a protest at the facility. Homestead holds the nation's largest child migrant population.

The senator said she would and brought supporters and the media with her on the visit.

The visit was pre-planned, according to The Washington Post reporter Dave Weigel.

"We have to shut down that facility and shut it down now," Warren told the town hall to applause.

Warren stood on a ladder to ensure she was seen above a fence keeping most of the children out of view.

In comments to the crowd, Warren said the detention centers were "a stain on our country."