In his final message to voters before the Iowa caucuses, Biden releases an advertisement titled “Threat” that explains, “Every day he is president, Donald Trump poses a threat to America and the world. We have to beat him. Joe Biden is the strongest candidate to do it.” The ad goes on to argue, “This is no time to take a risk. We need our strongest candidate. So let’s nominate the Democrat Trump fears the most. Vote Biden. Beat Trump.” The ad suggests that selecting other candidates, including the two viable women remaining, would be riskier than choosing Biden, something that has been central to electability claims about Biden throughout the Democratic contest.