President Donald Trump has justified sending National Guard troops into U.S. cities as part of an effort to combat crime and support local law enforcement. The CBO published the new data estimating the costs associated with the federal deployments of National Guard and active-duty Marines after a request from Sen. Jeff Merkley, D-Ore., who is the ranking member on the Senate Budget Committee. The CBO said continued deployments to those cities would cost about $93 million per month. National Guard troops are expected to remain deployed in Washington throughout 2026, according to a memo reviewed by The Associated Press earlier this month. A California federal judge in January ruled that the Trump administration “willfully” broke federal law by sending National Guard units to the Los Angeles area.