President Trump is sharply criticizing a federal judge who temporarily blocked his plan to deploy National Guard troops to Portland, Oregon, in response to immigration enforcement protests.

“That judge ought to be ashamed of himself,” Mr. Trump told reporters on Sunday, expressing frustration over the decision.

U.S. District Judge Karin Immergut, a Trump appointee, issued the restraining order Saturday after siding with local officials who argued that sending 200 federal troops was unnecessary and potentially inflammatory.

In her ruling, Judge Immergut emphasized the importance of constitutional boundaries.

“This country has a longstanding and foundational tradition of resistance to government overreach, especially in the form of military intrusion into civil affairs,” she wrote in the 31-page opinion. “This is a nation of constitutional law, not martial law. Defendants have made a range of arguments that, if accepted, risk blurring the line between civil and military federal power — to the detriment of this nation.”

She also took issue with Mr. Trump’s description of Portland as “war-ravaged,” calling it “simply untethered to the facts.”

The Department of Justice has filed a notice of appeal with the 9th U.S. Circuit Court of Appeals, challenging the judge’s decision.

Mr. Trump said he felt betrayed by the ruling.

“I appointed the judge and [she] goes like that, so I wasn’t served well,” he said. “Obviously, I don’t know the judge, but if [she] made that kind of a decision.”

Mr. Trump also doubled down on his characterization of Portland, saying the city “is burning to the ground.”

“You have agitators, insurrectionists. All you have to do is look at that,” he said. “Look at the television. Turn on your television, burning to the ground, the governor, the mayor, the politicians are petrified for their lives.”

• Seth McLaughlin can be reached at smclaughlin@washingtontimes.com.