The Mexican-American judge who President Trump once attacked for his heritage has ruled in favor of the Trump administration in a lawsuit attempting to block his promised wall on the U.S.-Mexico border.

U.S. District Court Judge Gonzalo Curiel ruled Tuesday against a legal challenge to the wall over environment waivers granted by the Department of Homeland Security to build the wall.

The ruling means that the administration will be able to continue waiving the regulations to build barriers on the border.

Curiel wrote in his ruling that he did not have “serious constitutional doubts” about the administration’s use of the waivers.

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