Ben Carson, whose widespread support among evangelical voters has shown some signs of slipping, will hold a news conference in South Carolina on Wednesday that his campaign has called an “Evangelical Rollout.”

A campaign spokeswoman on Tuesday said the event would be “for a number of pastors to announce their endorsement for the campaign,” though she did not specify what that number would be. The event mirrors Donald J. Trump’s meeting on Monday with a group of black pastors and community leaders that was initially presented as an endorsement announcement before the campaign redefined it as a private meeting.