President Donald Trump announced Thursday that National Guard Spc. Sarah Beckstrom — one of the two soldiers ambushed in Washington, D.C. — has died from her injuries, calling the suspected gunman a "monster" and blasting what he described as catastrophic vetting failures during President Joe Biden's Afghanistan withdrawal, according to a New York Times pool report. Trump made the announcement while speaking to military units via video link from the White House, seated alone at a table facing two large screens showing the troops. He said Beckstrom, 20, "was savagely attacked" and did not survive, and that the second soldier,...