With the help of celebrity endorsements, speeches and videos, Barack Obama overwhelmingly won the support of young people in both the 2008 and 2012 elections. Now Obama is calling on his celebrity friends to make one more sales pitch to young people. This time, he is trying to sell them the Affordable Care Act. Young people should reject this third attempt at winning them over.

Last week, Valerie Jarrett, senior adviser to the President, convened a meeting of celebrities to recruit them to sell the ACA – and Obama himself stopped in the meeting. A White House official reportedly said that these celebrities were chosen because they “expressed a personal interest in educating young people about the Affordable Care Act.” Actor Kal Penn (a former Obama administration official), comedian Amy Poehler, Funny or Die’s Mike Farah and YouTube’s Daniel Kellison attended. What about Oprah? She sent a representative, as did singer Alicia Keys.

Celebrities hawk all types of unpopular products to young people – but they might be facing their biggest challenge yet with Obamacare.