He made the announcement in a video Friday in which he claimed credit for much of the platform of Republican presidential nominee Donald Trump.
Duke claimed credit for creating the “America first” agenda advanced by Trump, saying he was “overjoyed” to see the embrace of many of his policy ideas by Republican voters.
“We cannot have free trade without fair trade. We must protect American jobs and businesses,” he said. The Louisiana Senate seat is opening up due to the retirement of GOP Sen. David Vitter, who lost a bid for governor last year.
The former KKK grand wizard returned to the public eye after urging listeners of his radio show to back Trump during the Republican primaries. He said “voting against Donald Trump at this point is really treason to your heritage,” Buzzfeed reported in February.
He previously ran for Louisiana governor in 1991 and lost in a runoff. He served in the state House from 1989 to 1992.