Thanks to president Trump, Sheriff Joe Arpaio is now a free man. And in his latest interview given to the San Jose Mercury News, racist sheriff has promised to keep fighting for one of Trump’s old conspiracies: searching for former President Barack Obama’s birth certificate.

Arpaio told the paper that Obama’s birth certificate “has to go down as the biggest cover-up in the history of the United States.” “Nobody wants to touch it,” he continued.

As noted by the Mercury News, 85-year-old who was convicted racially profiling Latino people as sheriff of Maricopa County, Arizona, and he once sent a deputy to Hawaii to investigate Obama’s birth certificate.

The sheriff has apparently decided that this is a fight he wants to keep going. While Trump has abandoned the search for Obama’s real origins, Arpaio pointed out to the Mercury News that Trump “never directly addressed the authenticity of the birth certificate itself.”

“It took me 85 years to finally know in my own heart who my hero is,” Arpaio told Mercury News. “You know who that person is? The president of the United States.”