Robert F. Kennedy Jr.’s sister blasted him for his endorsement of former President Trump, saying that it is an “inexplicable effort” to tarnish their father’s memory.

Kerry Kennedy, the sister of the former presidential candidate, ripped her brother for embracing Trump on MSNBC’s “Inside with Jen Psaki.” Her brother threw his support behind Trump on Friday after suspending his own campaign.

“So I’m outraged and disgusted by my brother’s gaudy and obscene embrace of Donald Trump. And I completely get out and separate and dissociate myself from Robert Kennedy Jr. in this flagrant and inexplicable effort to desecrate and trample and set fire to my father’s memory,” Kerry Kennedy said Sunday.

Members of Robert F. Kennedy Jr.’s family, including Kerry Kennedy, spoke out Friday against his endorsement of the former president in a statement, saying that it was “a betrayal of the values that our father and our family hold most dear.” 

Kerry Kennedy reiterated Sunday her support for Vice President Harris and Minnesota Gov. Tim Walz (D). She said her father “would have detested almost everything Donald Trump represents” if he was alive today.

“I think … the stakes this November couldn’t be higher, which is exactly why my whole family will be fighting so hard to reelect Kamala Harris and Coach Walz, who’ve been champions for the values that my family has fought for, for years,” she said.

“Donald Trump is the polar opposite. He’s a threat to most basic freedoms that are core to who we are as Americans, the right for women to control our bodies, the right to live in communities safe from gun violence, to love who you love,” she added.

His family has regularly dismissed RFK Jr.’s independent candidacy since he first launched his presidential bid last year. Kerry Kennedy also emphasized the importance of November’s election and ensuring that Trump is defeated.

“I think that Donald Trump is incredibly dangerous to us. And I think what Bobby has done here is anathema to everything. Not only [what] our family stands for, but what Bobby has given his life to. You know, he spent so many years out there working on protecting the environment. And that’s the opposite of what Trump plans to do,” she said.