Welcome to Democratic presidential race, where there are now 21 — yes, 21 — major contenders hoping to take on President Donald Trump in 2020.

But with so many candidates, how well have you been able to keep up with each one’s policy proposals, values and experience? Take the quiz below to test your own knowledge and brush up on each candidate’s platform.

Find all of WGBH News’ Election 2020 coverage here.

Interactive: Lisa Williams/WGBH News

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