Ken Bone endorses Andrew Yang for president: '#YangGang all the way!'

Ken Bone, the man who went viral after asking a question at a 2016 presidential debate, announced his support for Andrew YangAndrew YangHillicon Valley: Justice Department announces superseding indictment against WikiLeaks' Assange | Facebook ad boycott gains momentum | FBI sees spike in coronavirus-related cyber threats | Boston city government bans facial recognition technology The Hill's Campaign Report: Progressives feel momentum after primary night Clinton, Buttigieg among Democrats set to hold virtual events for Biden MORE in the 2020 Democratic primary on Sunday.

In a video posted to Twitter the night before the Iowa caucuses, Bone implored the state's residents to support Yang, who he said would "put humanity first."

"You guys know I don't endorse candidates. Except for when I do. I'm fully on board, #YangGang all the way! Iowa, we need you. Tomorrow at 6:30 we can make this a caucus to remember!" Bone tweeted.

Bone wore his iconic red sweater in the endorsement video, the same sweater he famously wore during a 2016 presidential debate between former Secretary of State Hillary ClintonHillary Diane Rodham ClintonRepublican Nicole Malliotakis wins New York primary to challenge Max Rose Trump's evangelical approval dips, but remains high How Obama can win back millions of Trump voters for Biden MORE (D) and now-President TrumpDonald John TrumpHouse panel approves 0.5B defense policy bill House panel votes against curtailing Insurrection Act powers after heated debate House panel votes to constrain Afghan drawdown, ask for assessment on 'incentives' to attack US troops MORE.

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"The Iowa caucus is tomorrow. It's a critical step in what's already been a grueling election cycle. Show them what we got #YangGang," he added in a tweet sent earlier Sunday evening.