Khizr Khan isn’t finished talking about his son, the U.S. Constitution and the dangers of bigotry.

The Muslim father of a soldier slain in Iraq, whose Democratic convention speech served as a rebuke of Republican Donald Trump’s anti-Muslim rhetoric, is busy campaigning for Hillary Clinton and other Democrats.

In a recorded call on Sunday, he will urge half a million Muslims to go to the polls, part of a broader effort to get out the vote in that community, which appears to be succeeding.

And after Tuesday’s vote—no matter the outcome—he will continue making appeals at college campuses and civic groups for religious tolerance. He says he is booked through spring.

“There is a whole lot of healing that needs to be done after the election,” he said in an interview with The Wall Street Journal on Tuesday, shortly before he spoke at the University of Virginia, his son’s alma mater. “All this division that has been created needs to be dealt with so we can all recover as a nation, come together and move forward.”