NEWSThousands attend the March for Life rallyA demonstrator holds a sign during a "die-in" in front of the White House on January 27, 2017 in Washington. Anti-abortion activists are gathering for the 44th annual March for Life in Washington, protesting the 1973 Supreme Court decision legalizing abortion.Zach Gibson, AFP/Getty ImagesDemonstrators participate in a "die-in" in front of the White House on January 27, 2017 in Washington.Zach Gibson, AFP/Getty ImagesAbortion opponents participate in a "die-in" in front of the White House on January 27, 2017 in Washington.Zach Gibson, AFP/Getty ImagesPro Life supporters gather at the Washington Monument to hear Vice President Mike Pence speak at the March for Life rally on Jan. 27, 2017.Tasos Katopodis, AFP/Getty ImagesPro Life supporters gather at the Washington Monument at the March for Life rally in Washington, DC. Anti-abortion activists are gathering for the 44th annual March for Life in Washington, protesting the 1973 Supreme Court decision legalizing abortion.Tasos Katopodis, AFP/Getty ImagesPro Life supporters gather at the Washington Monument at the March for Life rally in Washington, DC.Tasos Katopodis, AFP/Getty ImagesPro Life supporters at the March for Life rally in Washington, DC.Tasos Katopodis, AFP/Getty ImagesAnti-abortion activists are gathering for the 44th annual March for Life in Washington, protesting the 1973 Supreme Court decision legalizing abortion.Tasos Katopodis, AFP/Getty ImagesPro Life supporters at the March for Life rally in Washington, DC.Tasos Katopodis, AFP/Getty ImagesPro Life supporters at the March for Life rally on in Washington,DC.Tasos Katopodis, AFP/Getty ImagesJim Havens holds his daughter Theresa Havens, 7, both of New York, during the March for Life in Washington.Jarrad Henderson, USA TODAYThousands of people rally on the National Mall before the start of the March for Life.Chip Somodevilla, Getty ImagesBianca Checo and Bridget Bicek, cheer on Utah Senator Mia Love during the March for Life in Washington.Jarrad Henderson, USA TODAYThousands of people rally on the National Mall before the start of the March for Life.Chip Somodevilla, Getty ImagesKellyanne Conway, senior aide to US president Donald Trump, speaks at the March for Life rally on January 27, 2017 in Washington.Tasos Katopodis, AFP/Getty ImagesVice President Mike Pence, his wife Karen Pence and their daughter Charlotte Pence arrive for a rally on the National Mall before the start of the annual March for Life.Chip Somodevilla, Getty ImagesPeople prepare to march during the annual March for Life in Washington.Jarrad Henderson, USA TODAYMembers of the American Society for the Defense of Tradition, Family and Property hold an 'Our Lady of Fatima' statue while participating in the March for Life in Washington.Michael Reynolds, European Pressphoto AgencyPeople march up Constitution Avenue en route to the U.S. Supreme Court the annual March For Life.Carolyn Kaster, APA pro-life activist holds rosary beads as she prays in front of the U.S. Supreme Court during the March For Life in Washington.Jim Watson, AFP/Getty ImagesAn anti-abortion advocate talks with a pro-choice advocate in front of the U.S. Supreme Court during the March for Life.Drew Angerer, Getty ImagesA man wears tape over his mouth during the annual March for Life.Jim Watson, AFP/Getty ImagesTracey Corral, an anti-abortion advocate, holds a cross outside of the U.S. Supreme Court during the March for Life.Drew Angerer, Getty Images