President Trump vowed Thursday to “totally destroy” a law passed more than 60 years ago that bans tax-exempt churches from supporting political candidates, a nod to the religious right that helped sweep him into office. Speaking at the National Prayer Breakfast in Washington, Trump said he would seek to overturn the Johnson Amendment, which prohibits tax-exempt nonprofits – including churches and other houses of worship – from “directly or indirectly” participating in a political candidate’s campaign.