In Photos: March for Life Anti-Abortion Rally

Pro-life supporters gather at the Washington Monument to hear U.S. Vice President Mike Pence speak at the March for Life rally, Jan. 27, 2017, in Washington, D.C.

Pro-life supporters gather at the Washington Monument to hear U.S. Vice President Mike Pence speak at the March for Life rally, Jan. 27, 2017, in Washington, D.C.

Pro-life supporters gather at the Washington Monument to hear U.S. Vice President Mike Pence speak at the March for Life rally, Jan. 27, 2017, in Washington, D.C.

The annual March for Life rally takes place on the grounds of the Washington Monument in Washington, D.C., Jan. 27, 2017.

Pro-life supporters gather at the Washington Monument to hear U.S. Vice President Mike Pence speak at the March for Life rally, Jan. 27, 2017, in Washington, D.C.

Thousands of people rally on the National Mall before the start of the 44th annual March for Life, Jan. 27, 2017 in Washington, D.C.

Pro-life supporters gather at the Washington Monument to hear U.S. Vice President Mike Pence speak at the March for Life rally, Jan. 27, 2017, in Washington, D.C.

Pro-life activists gather for the National March for Life rally in Washington, D.C., Jan. 27, 2017.

Pro-life demonstrators march towards the U.S. Supreme Court during the 44th annual March for Life in Washington, D.C., Jan. 27, 2017.

Pro-life supporters gather at the Washington Monument to hear Vice President Mike Pence speak at the March for Life rally, Jan. 27, 2017, in Washington, D.C.

Abortion opponents participate in a "die-in" in front of the White House, Jan. 27, 2017, in Washington, D.C.

A demonstrator holds a sign during a "die-in" in front of the White House, Jan. 27, 2017, in Washington, D.C.

Pro-life and pro-choice activists gather at the Supreme Court for the National March for Life rally in Washington, D.C., Jan. 27, 2017.

Pro-life activists gather at the Supreme Court for the National March for Life rally in Washington, Jan. 27, 2017.