President Trump announced Wednesday that he will attend Friday’s March for Life, the annual gathering of antiabortion protesters to commemorate the anniversary of Roe v. Wade, the Supreme Court’s landmark abortion decision.

While other presidents have addressed the annual rally by phone or sent video greetings, Trump would be the first to speak to the crowd in person.

His appearance was announced on the 47th anniversary of the Roe v. Wade decision, and as the president’s bond with groups opposing abortion grows stronger. Just a few days ago, the antiabortion group Susan B. Anthony List and its affiliated super PAC announced it would spend $52 million to help the president’s reelection and work to protect the Republican majority in the U.S. Senate, Politico reported.

The March for Life began in 1974, the year after the Roe v. Wade decision, and has grown to include multiple associated events, including Catholic Masses, a national prayer service, a conference and an expo.

The rally on the Mall will start at noon, which is about when Trump is expected to speak. Around 1 p.m., on Constitution Avenue between 12th and 14th streets, protesters will gather and march to the Supreme Court.

In 2017, right after Trump was sworn in, Vice President Pence became the first vice president to address the rally in person, and Trump appeared via satellite, thrilling the crowd. Trump sent video greetings in 2018 and 2019, when Pence again appeared in person.

“When we look into the eyes of a newborn child, we see the beauty and the human soul and the majesty of God’s creation. We know that every life has meaning,” Trump said in the 2019 video, before listing his administration’s antiabortion actions and vowing to reject any legislation that “weakens” efforts to prevent abortion access.

Some Democrats who oppose abortion have expressed concern that the president’s involvement in March for Life could distance those who aren’t fans of Trump from the movement.

March for Life president Jeanne Mancini and other antiabortion leaders said last year that they wanted to include a politically diverse audience of anyone who opposes abortion — which, according to polling, includes at least a quarter of Democratic voters, although antiabortion Democrats in Congress are a rapidly dwindling group.

Mancini touted the equal balance in speakers in 2019, two Republican congressmen and two Democrats (one a state legislator).

In her announcement Wednesday that Trump would be speaking on Friday, Mancini praised the administration’s record on abortion.

“From the appointment of pro-life judges and federal workers, to cutting taxpayer funding for abortions here and abroad, to calling for an end to late-term abortions, President Trump and his Administration have been consistent champions for life and their support for the March for Life has been unwavering,” she said.

Michelle Boorstein contributed to this report.