"With the millions of people that Crooked Joe Biden has allowed into the United States through his ridiculous Open Borders Policy, mostly young men, and large numbers of TERRORISTS, the U.S. is more vulnerable from inside terror attacks than at any time in its history, BY FAR! MAGA," Trump wrote on Truth Social.
The Department of Homeland Security in September warned in its annual Homeland Threat Assessment for 2024 that terrorism "remains a top threat" to the United States.