President Donald Trump’s approval ratings may be sliding, but one political super sense is as sharp as ever: picking a fight with an adversary he casts as the entire Democratic Party.

Step forward, New York Mayor Zohran Mamdani.

It took just days for Trump to jump on Mamdani’s refusal to roll back a campaign pledge to arrest Israel’s Prime Minister Benjamin Netanyahu, for whom the International Criminal Court has issued a warrant, if he showed up in the city.

“Benjamin Netanyahu will not be arrested, in any way, shape, or form, while in the United States of America,” Trump announced on Monday on Truth Social, his preferred venue for igniting new culture war tussles.

The president’s response raised the possibility of a clash between federal power and the city he once called home.