President Donald Trump on Tuesday took aim at California Gov. Jerry Brown's decision to limit his state's National Guard troops' mission at the border.

"Looks like Jerry Brown and California are not looking for safety and security along their very porous Border," the president tweeted. "He cannot come to terms for the National Guard to patrol and protect the Border. The high crime rate will only get higher. Much wanted Wall in San Diego already started!"

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The Democratic governor said he would not permit National Guard troops to fully engage in immigration enforcement on the border. Such a move would run counter to Trump's plan to bolster the military presence at the border as he awaits construction of his long-promised wall.

Brown's press office responded to Trump's vitriol Tuesday morning with a tweet of its own, complete with an "eyeroll" emoji.

BROWN TWEET

The Republican governors of Arizona, New Mexico and Texas are already on board with Trump's National Guard demand and have moved quickly to draw up deployment action plans.

On Tuesday, a National Security Council representative, who declined to be named, addressed the matter with a softer tone than the president's.

"The Trump Administration is committed to improving our national security by strengthening controls at our southern border," the representative told CNBC. "Until Congress acts on President Trump's common-sense solutions, the National Guard is helping to fill the gap. We remain hopeful that California will accept our help to stop the flow of drugs and gang members across the border into their communities."

The Trump administration said Monday that California had rejected the terms for troop deployment set out by the president.

"The governor determined that what we asked for is unsupportable, but we will have other iterations," said Ronald Vitiello, U.S. Customs and Border Protection's acting deputy commissioner.