Embattled Missouri Rep. Todd Akin is holding a news conference at 5:15 p.m. But, despite enormous pressure from national figures, a Republican strategist says he will instead tell reporters that he plans to remain in the Senate race against Democratic incumbent Claire McCaskill.

Akin is under fire for telling a St. Louis television reporter that pregnancy rarely results from "legitimate rape." He has apologized for the comment but leading Republicans, including presidential candidate Mitt Romney, are calling for him to exit the race.

Though he has told television interviewers that he plans to remain in the races, this will be his first Missouri news conference since making the comments. It comes after receiving reassurance from social conservatives, including former Arkansas Gov. Mike Huckabee, that he continues to have their support.