President Trump will attend the March for Life rally in Washington, D.C. this week, making him the first sitting president to ever attend the event.

March for Life released a statement earlier this week, writing, “We are deeply honored to welcome President Trump to the 47th annual March for Life. He will be the first president in history to attend and we are so excited for him to experience in person how passionate our marchers are about life and protecting the unborn.”

“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,” the statement continues. “We are grateful for all these pro-life accomplishments and look forward to gaining more victories for life in the future.”

The President delighted pro-life activists when he tweeted a reply to a March for Life social media post, writing, “See you on Friday…Big Crowd!”

See you on Friday…Big Crowd! https://t.co/MFyWLG4HFZ — Donald J. Trump (@realDonaldTrump) January 22, 2020

The rally is expected to draw an estimated 100,000 pro-life supporters to the nation’s capitol and always takes place around the time of the anniversary of the Roe v. Wade abortion ruling.

The president has been a staunch supporter of the pro-life movement and earlier this week, he declared Jan 21, 2020– the anniversary of Roe v. Wade– to be “National Sanctity of Human Life Day, 2020.”

“As a Nation, we must remain steadfastly dedicated to the profound truth that all life is a gift from God, who endows every person with immeasurable worth and potential,” wrote President Trump. “Countless Americans are tireless defenders of life and champions for the vulnerable among us. We are grateful for those who support women experiencing unexpected pregnancies, those who provide healing to women who have had abortions, and those who welcome children into their homes through foster care and adoption. On National Sanctity of Human Life Day, we celebrate the wonderful gift of life and renew our resolve to build a culture where life is always revered.”

The March for Life rally will begin at 12:00 p.m. ET on Friday.