The current unrest in Los Angeles is a lot different from the last time a U.S. president called out the National Guard to respond to violence on the streets.

President Donald Trump on Tuesday did not rule out invoking the Insurrection Act if necessary to squash violence at the Los Angeles protests. “If there’s an insurrection, I would certainly invoke it,” Trump said.

U.S. Homeland Security Secretary Kristi Noem on Tuesday criticized Mexican President Claudia Sheinbaum for comments that she said encouraged violence at protests in Los Angeles, drawing a rebuke from the Mexican leader,