Andrew Yang Andrew YangDoctor who allegedly assaulted Evelyn Yang arrested on federal charges The Hill's Campaign Report: Biden weighs in on police shootings | Who's moderating the debates | Trump trails in post-convention polls Buttigieg launches his own podcast MORE has endorsed Joe Biden Joe BidenCast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response Biden tells CNN town hall that he has benefited from white privilege MORE, becoming the latest former 2020 Democratic presidential candidate to throw their support behind Biden's White House bid.

Yang announced his endorsement on CNN on Tuesday night, just one day after Sen. Cory Booker Cory Anthony BookerDHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility Black Voters Matter Fund deploying voter outreach caravans in 12 states to drive turnout MORE (D-N.J.) endorsed the former vice president.

“The math says Joe is our prohibitive nominee. We need to bring the party together. We need to start working on defeating Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE in the fall,” Yang said.

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The tech entrepreneur, who joined CNN as a political commentator last month, announced his endorsement after Biden won several states on Tuesday, including the top prize of Michigan.

Yang’s endorsement makes him one of a growing list of former 2020 rivals to endorse the former vice president in the primary race – including Booker, Sen. Kamala Harris Kamala HarrisScott Walker helping to prep Pence for debate against Harris: report California family frustrated that governor, Harris used fire-damaged property for 'photo opportunity' Moderna releases coronavirus vaccine trial plan as enrollment pushes toward 30,000 MORE (D-Calif.), Sen. Amy Klobuchar Amy KlobucharEPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates Biden marks anniversary of the Violence Against Women Act, knocks Trump and McConnell MORE (D-Minn.), former South Ben, Ind. Mayor Pete Buttigieg Pete ButtigiegBogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq A socially and environmentally just way to fight climate change MORE (D), former Rep. Beto O’Rourke (D-Texas) and former Massachusetts Gov. Deval Patrick Deval PatrickRalph Gants, chief justice of Massachusetts supreme court, dies at 65 It's as if a Trump operative infiltrated the Democratic primary process Top Democratic super PACs team up to boost Biden MORE (D).

Though Sen. Elizabeth Warren Elizabeth WarrenWarren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon No new taxes for the ultra rich — fix bad tax policy instead MORE (D-Mass.) has faced calls to endorse Sanders, a fellow progressive, following her exit from the race last week after Super Tuesday, she declined to make an immediate endorsement.

“Let’s take a deep breath and spend a little time on that. We don’t have to decide that this minute,” Warren said last week.

Still, 50 former campaign staffers for Warren announced their support for Sanders in an open letter on Tuesday, calling him the “best option for Warren Democrats right now” as polls opened across six states.

New York City Mayor Bill de Blasio Bill de BlasioNew York again pushes back in-person classes The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump contradicts CDC director on vaccine, masks De Blasio to furlough himself, 494 other staff members amid financial crunch: report MORE (D), a former 2020 presidential candidate who also has endorsed Sanders in the primary race, has also called on Warren to do the same, saying Sanders would have “already endorsed” Warren if the roles were reversed.

“I deeply respect @ewarren. Our nation + our party is better + more progressive because of her leadership. Now our progressive movement needs her more than ever,” de Blasio tweeted last week. “Senator, if the shoe were on the other foot @BernieSanders would have already endorsed you. We have.”