Associated Press President Donald Trump speaks with reporters in flight on Air Force One after landing at U.S. Air Force Base at RAF Mildenhall, in Suffolk Eastern England, Wednesday, July 8, 2026. (AP Photo/Alex Brandon) Of all the responsibilities assigned to an American president, none is more important than keeping the country safe from its enemies. Yet, the U.S. has rarely, if ever, been as vulnerable as it is today under President Trump. He has become our greatest national security threat.
Let’s assess what he has done.
He launched a war of choice against Iran, a strategic and economic ally of Russia and China. The war quickly depleted America’s supply of critical weapons. Experts say it will take at least three years to rebuild the arsenal. The Center for Strategic and International Studies says this has “created a window of vulnerability for a potential Western Pacific conflict.“
Trump has railed against NATO allies France, the United Kingdom, Italy and Germany for not supporting his attacks on Iran, even though NATO is a defense alliance, not a war alliance. Iran has retaliated by attacking U.S. military facilities in Bahrain, Kuwait, Qatar and Jordan. Trump’s relationship with Saudi Arabia has been strained by the kingdom’s refusal to let U.S. forces use its bases and airspace during the war.
Trump has frequently lashed out at and alienated NATO, which, at 77, is one of history’s oldest security alliances. Lately, he has publicly insulted Italy’s leader, told his staff during a news conference to cut off trade with Spain, and outraged Belgium by interfering with its World Cup match against the United States.
He has threatened to take Greenland from Denmark, by force if necessary. That would obligate the alliance’s other 31 members to defend Denmark against his aggression.
Trump has launched military operations against nearly a dozen countries during his two terms, including strikes against Syria, Somalia, Nigeria and Venezuela. He apparently is not inclined to stop; he has hinted that he’d like to control or annex Cuba, Colombia, Mexico, the Panama Canal, and even Canada.
Russia and China are watching closely. They undoubtedly notice that Trump has degraded the government’s ability to anticipate and defend against attacks. Hundreds of America’s top military, intelligence and security officials have either been fired or pushed out for political reasons, or because they considered the administration’s orders unconscionable.
Since Trump’s second term began, about 300 FBI agents who worked on national security have left the bureau. The loss has been characterized as a “purge” that has greatly depleted the FBI’s capabilities.
Now, the administration has diverted 260 FBI analysts to focus on a “priority investigation” of the 2020 election. Their task is to find proof of Trump’s six-year fantasy that he won against Joe Biden.
The Department of Homeland Security is preoccupied with White House adviser Stephen Miller’s goal of deporting 1 million immigrants this year, which the Southern Poverty Law Center describes as “racist and draconian” rather than related to homeland security. Meanwhile, there has been a sharp drop in morale at the Pentagon, where Defense Secretary Pete Hegseth fired 15 senior officers while the U.S. is at war.
Trump, who prefers to follow his gut rather than facts, has hollowed out the government’s vital intelligence agencies and replaced career experts with political loyalists. He recently named Bill Pulti, a housing developer, as acting director of National Intelligence.
Pulti immediately fired more than 50 intelligence experts and promised more, leading to speculation that he would declassify allegations that China has interfered with elections so that Trump could declare a national security emergency and manipulate the rules of the midterm election.
Last November, Sen. Mark Warner (D-Va.), the vice chairman of the Senate Select Committee on Intelligence, warned that the Trump administration had created a “deepening threat to our security” by purging a third of the nation’s cybersecurity experts in other agencies besides the FBI, reassigning up to 45 percent of FBI agents to help round up immigrants, and forcing thousands of security experts out of government for political reasons.
In March, after U.S. airstrikes killed Iran’s supreme leader, ABC News reported that the Trump administration intercepted an encrypted message that appeared to be “an operational trigger” from Iran to its “sleeper assets.” Iran, Russia, China and North Korea are suspected of having secret operatives on U.S. soil.
Dr. Matthew Levitt, a counterterrorism expert at the Washington Institute, calls this a heightened security environment. “If there were ever a time where Iran (was) going to pull out the stops and try to do something, now would be it,” he warns.
China and Russia undoubtedly see that Trump is preoccupied with building monuments to himself and showing signs of cognitive decline. Insofar as he seems concerned about enemies, they are his imagined “enemies within,” his political opponents and people on the left.
Under the circumstances, the most important thing Congress can do to strengthen national security is to remove Trump from office as soon as possible.
William S. Becker is co-editor of and a contributor to “Democracy Unchained: How to Rebuild Government for the People”” and a contributor to “Democracy in a Hotter Time.” He previously served as a senior official in the Wisconsin Department of Justice. He is currently executive director of the Presidential Climate Action Project.
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