Arizona Gov. Katie Hobbs on Friday ordered the deployment of the National Guard to the border with Mexico, stressing that the federal government’s recent decision to close a border checkpoint in her state “has led to an uncontrollable humanitarian crisis.”

It is a notable rebuke of US President Joe Biden by a Democratic official as border security emerges as a major campaign issue. In the 2024 presidential election, President Biden will seek re-election to the White House.

“Once again the federal government she refuses to do her job to secure our borders and keep our communities safe,” Hobbs said in a press release.

Arizona’s governor did not specify how many National Guard members would be mobilized, saying they would be deployed near the Lukeville border crossing and in the San Miguel area.

On Dec. 4, federal Customs and Border Protection (CBP) closed the Lukeville border checkpoint until further notice, citing a reallocation of resources to address migrant smuggling elsewhere on the border.

In the executive order to mobilize the National Guard, Katie Hobbs says the “crisis” has put public safety and commerce at risk. He had previously asked President Biden to task the Arizona National Guard with reopening the Lukeville border checkpoint.

“With this executive order, I’m taking action where the federal government doesn’t,” he says, pointing out that the Biden administration has not responded to its request to reimburse the state for border patrol costs.

President Biden has also come under pressure from other Democrats on immigration. Among them are the mayors of Chicago, Denver, Houston, Los Angeles and New York, who have called for more funding to deal with the increased influx of immigrants.