Sen. Kamala Harris (D-California) announced on Sunday that she would support former Vice President Joe Biden. On Monday, she headlined a rally with Biden in Detroit ahead of Michigan’s primary on Tuesday. 

She shared a video on Twitter after arriving in Selma, Alabama, to commemorate the 55th anniversary of Bloody Sunday. The tweet read, “[Joe Biden] has served our country with dignity and we need him now more than ever. I will do everything in my power to help elect him the next President of the United States.”

“We still have yet to achieve those ideals, but one of the greatest things about us is that we are willing to fight to get there,” she said. “So I just wanted you guys to know … I have decided that I am, with great enthusiasm, going to endorse Joe Biden.” 

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She joined Pete Buttigieg, Beto O’Rourke and Amy Klobuchar in endorsing Biden. “There is so much at stake in this election, guys, so join me in supporting Joe. Let’s get this done,” she said before announcing she would be at Biden’s Detroit rally on Monday night.

Harris also sent out a statement in which she said Americans “deserve a president with the knowledge and experience to reassure a nation weary of tweets, lies and incompetence.”

The statement continued to praise the former vice president. “You can see in his eyes how he takes to heart the experiences of mothers and fathers working to make ends meet and worrying about whether their children can be safe in their classroom, or young people who fight tirelessly to tackle climate change as they ask for a fair shot at the future in front of them. And with a lifetime in public service, Joe has a proven track record of getting things done.”

Harris, who was a Democratic hopeful herself, suspended her campaign in December. The endorsement heighten talk of a Biden-Harris ticket going into the fall.