Liberal comedian Kathy Griffin, who famously posed with a fake severed head of President Trump, took a vicious new swing at the first lady over the immigration controversy on Sunday.

The first lady had weighed in earlier in the day. “Mrs. Trump hates to see children separated from their families & hopes both sides of the aisle can finally come together to achieve successful immigration reform. She believes we need to be a country that follows all laws but also a country that governs w/heart,” her office told Fox News.

Griffin then tweeted: “F--- you, Melanie. You know damn well your husband can end this immediately...you feckless complicit piece of s---.”

The first lady's office did not respond to Fox News' request for comment.

Alluding to a May tweet from Trump in which he missspelled his wife’s name -- as well as Samantha Bee’s slam of Ivanka Trump as a “feckless c---” on her show in May -- Griffin was referring to news of family members who have been separated by federal authorities while illegally crossing the border from Mexico into the United States.

The tweet is already receiving backlash online: “Kathy Griffin is hate filled and pathetic,” one user tweeted, saying the comic was one reason “why the left can’t be taken seriously.”

Griffin drew public backlash after she posed with a bloodied mask of Trump’s face in May 2017. After the gory photo went viral, Griffin said sorry but later took back her apology. Following the photos, CNN cut Griffin from hosting its New Year’s Eve show alongside co-anchor Anderson Cooper, who squashed their friendship.