A group of teens and twentysomethings gathered in a nondescript meeting room at the Long Beach Convention Center, hoping for a chance to say a few words and take a selfie with one of the most fervent opponents of Donald Trump to emerge from the 2016 election.

Khizr Khan, the Gold Star father who became a viral sensation after speaking at the Democratic National Convention about the death in Iraq of his Army captain son, is no longer on the campaign trail for Hillary Clinton. Now the 65-year-old has a new mission: inspiring hope in young Muslims, some of whom had never voted in an election before last month, some of whom weren’t old enough to vote at all.

Thirty-three days after Trump was elected, many of these Muslims were feeling dejected. Some attended mosques in Southern California that received anonymous letters vowing that the next president would “do to Muslims what Hitler did to the Jews.” Others knew hijab-wearing women who had faced harassment amid a wave of anti-Muslim incidents reported around the country since the election.