Groups opposed to abortion rights have signed a letter asking federal health officials to urge abortion providers to "cease operations" in an effort to preserve medical equipment.
He has addressed the annual march remotely before, but this will be the first time that a sitting president will speak at the anti-abortion rights event.
The nonprofit organization And Then They Were None offers financial assistance, job search help, and spiritual and emotional support to workers who leave jobs at clinics that provide abortions.
Mike Pence is the first vice president to address the decades-old annual rally that abortion-rights opponents call the March for Life. The event is drawing comparisons to last week's Women's March.
In a speech to a major evangelical confab, many Republicans still seemed skeptical of their presumptive nominee, while Democrats at a Planned Parenthood gathering were fired up about theirs.
North Carolina Rep. Renee Ellmers is the first Republican incumbent to lose a primary this year, the victim of heavy conservative spending against her and a new congressional map.
The Texas grand jury investigating Planned Parenthood found no wrongdoing by the abortion provider, but it indicted two anti-abortion activists involved in making covert videos of the organization.
Justices Clarence Thomas and Antonin Scalia voted to hear the case over whether documents from Planned Parenthood of Northern New England should be turned over to an anti-abortion group.
