While past Republican Presidents had always expressed their support for the March for Life, none had trekked the couple of blocks from the White House to appear in person.
"It is my profound honor to be the first President in history to attend the March for Life," Mr. Trump said to loud cheers, 47 years after the U.S. Supreme Court legalized abortion with the Roe v. Wade decision.
"I notified Congress that I would veto any legislation that weakens pro-life policies or that encourages the destruction of human life," Mr. Trump said, as he also again expressed his opposition to late-term abortions.
The President also spoke about conservative judges who have been approved for the federal bench during his time in office, also citing his two Supreme Court picks, Justices Brett Kavanaugh and Neil Gorsuch.
Even though he could easily see the Capitol from the rally, the President made no mention of his Senate impeachment trial, as the gathering brought together a number of GOP lawmakers for the march.