Rep. Pramila Jayapal (D-WA), co-chair of the Progressive Caucus, endorsed Sen. Bernie Sanders’ (I-VT) presidential bid on Sunday, claiming that she “can feel Bernie beating Trump.”

The far-left lawmaker formally endorsed Sanders on Sunday, describing the socialist lawmaker as “a brilliant leader for progressive ideas.”

“What I feel we need is a candidate who is entirely authentic about what’s wrong and steadfast about it and can rally people to believe he can trust them,” Jayapal told the Washington Post. “Bernie has that. I can feel Bernie beating Trump.”

Jayapal, who introduced the Medicare for All Act of 2019 in the House, also announced her role as the national health policy chair for Sanders’ campaign.

“Rep. @PramilaJayapal has been a brilliant leader for progressive ideas. She’s led the fight against Trump’s racism, sexism and xenophobia,” Sanders said of Jayapal’s endorsement.

“Together, we will defeat Trump and build a working class movement and transform this country so it works for all,” he added:

Rep. @PramilaJayapal has been a brilliant leader for progressive ideas. She's led the fight against Trump's racism, sexism and xenophobia. Together, we will defeat Trump and build a working class movement and transform this country so it works for all. https://t.co/sYx6zIYsrE — Bernie Sanders (@BernieSanders) January 19, 2020

“I’m all in for @BernieSanders for President!” Jayapal affirmed:

I'm all in for @BernieSanders for President! Bernie has the bold passion, authenticity & clarity that working people across this country desperately need. We are building the progressive movement that will bring justice & opportunity & transform our country. Join us! https://t.co/GnWZ6BK4R5 — Pramila Jayapal (@PramilaJayapal) January 19, 2020

Members of the “Squad,” most of whom have endorsed Sanders for president — Rep. Ayanna Pressley (D-MA) endorsed Sen. Elizabeth Warren (D-MA) — celebrated their candidate’s latest endorsement.

Rep. Alexandria Ocasio-Cortez (D-NY) described it as a “really big deal.”

“Pramila is a major leader in the House, carries the Medicare for All bill & co-chairs the Congressional Progressive Caucus,” she said.

“Both chairs of the Progressive Caucus have now endorsed Bernie Sanders,” she added:

🚨 Really big deal – @PramilaJayapal has endorsed Bernie Sanders for President. Pramila is a major leader in the House, carries the Medicare for All bill & co-chairs the Congressional Progressive Caucus. Both chairs of the Progressive Caucus have now endorsed Bernie Sanders. https://t.co/DPUjrFWTW3 — Alexandria Ocasio-Cortez (@AOC) January 19, 2020

Rep. Mark Pocan (D-WI), the other co-chair of the Progressive Caucus, endorsed Sanders last week. He will also chair Sanders’ campaign in Wisconsin.

“Together you know, we’re gonna beat Trump badly in Wisconsin,” Sanders declared in the announcement video.

I am proud to endorse @BernieSanders for President of the United States. After three years of Trump, Wisconsinites want someone who they can trust with values they share. Bernie never stopped fighting for working families & I am joining him in the fight to defeat Donald Trump. pic.twitter.com/0UphQV3mrv — Mark Pocan (@MarkPocan) January 16, 2020

I’m so proud that @MarkPocan is supporting our movement and will chair our campaign in Wisconsin. With Mark’s help, we will win Wisconsin in 2020 and defeat Donald Trump. pic.twitter.com/BS8UFOnNMy — Bernie Sanders (@BernieSanders) January 16, 2020

Jayapal’s endorsement coincides with the New York Times endorsing Sens. Warren and Amy Klobuchar (D-MN).