Republican lawmakers gathered at the Kennedy Center.
White House officials and Republican lawmakers gathered at the Kennedy Center at 6 p.m. to hold a prayer vigil in remembrance of conservative activist Charlie Kirk.
On Saturday, after long promising to impose consequences on Russia in an effort to get President Vladimir Putin to the negotiating table to end the war in Ukraine, President Donald Trump pressed NATO nations to join him before he imposes potential sanctions.
Speaker Mike Johnson said Sunday that there is an appetite in Congress to impose sanctions on Russia, which he said are "overdue."
President Donald Trump told pool reporters he plans to speak with Charlie Kirk's family on Thursday afternoon. He referred to Kirk's wife, Erika, as a "wonderful woman."
The comments came after Trump announced he will award Kirk the Presidential Medal of Freedom posthumously. The award is the nation's highest civilian honor.
President Donald Trump delivered remarks at the Pentagon commemorating the 24th anniversary of the Sept. 11 attacks on the United States.
"On that fateful day, savage monsters attacked the very symbols of our civilization. Yet here in Virginia and in New York and in the skies over Pennsylvania, Americans did not hesitate," Trump said. "They stood on their feet, and they showed the world that we will never yield. We will never bend. We will never give up. And our great American flag will never, ever fail."
Trump told personal stories of heroes and victims of the attacks, saying "that day we learned that the American heroic spirit was all around us."
The president also issued a warning that anyone who would attack the U.S.
"In the years to follow, America's warriors avenge the fallen and send an unmistakable message to every enemy around the world," Trump said. "If you attack the United States of America, we will hunt you down and we will find you. Go all over this sometimes magnificent earth. We will crush you without mercy. And we will triumph without question. That's why we named the former Department of Defense the Department of War."
President Donald Trump and first lady Melania Trump have arrived at the Pentagon to observe the 24th anniversary of the terror attacks of Sept. 11, 2001. Both are wearing black, with the first lady donning sunglasses and Trump wearing a red tie.
They are accompanied by Pentagon chief Pete Hegseth and Chairman of the Joint Chiefs of Staff Gen. Dan Caine.
President Donald Trump is scheduled to begin his Thursday at the Pentagon, where he and first lady Melania Trump will attend a ceremony marking the 24th anniversary of the terror attacks of Sept. 11, 2001.
Trump is expected to arrive for the ceremony at about 8:45 a.m. ET, according to the White House.
The Pentagon began the day of remembrance with a flag unfurling at dawn, an event attended by Secretary of Defense Pete Hegseth.
-ABC News' Isabella Murray
