Jules Manson, a failed Tea Party candidate for local office in California, recently called for the assassination of President Obama and his daughters in a racial epithet-ridden Facebook screed.

The post, originally about his opposition to the recent passage of the controversial National Defense Authorization Act, which includes a measure allowing the indefinite detention of suspected foreign terrorists, referred to the president as a "monkey." Then it got much worse.

"Assassinate the f----- n----- and his monkey children," Manson commented on his own post, according to a screen shot uploaded by Facebook group "Americans Against the Tea Party" and relayed by Your Black Politics blog.

The post has since been scrubbed from his Facebook profile, replaced with an explanation that the comments were "careless, emotionally driven remarks that had no real substance."

Manson, an avid Ron Paul supporter and libertarian, also writes that he has since been visited by the Secret Service, with whom he says he cooperated fully as he "was hiding nothing."

According to the New York Daily News, Manson, who lost his 2011 bid for a City Council seat in Carson, Calif. with only 4 percent of the vote, has also posted pictures of Obama dressed as Hitler from his Facebook account.

In a post listed since the latest flare-up, Manson derisively announces a 2012 run for California's 28th State Senate district as a Democrat.

"I intend on representing the Democratic Party with due dignity, and loyalty for my campaign contributors which will happen to be public-sector labor unions and other collective bargaining institutions that help keep the poor man down and dependent on government," he writes. "I will also strongly advocate for the raising of taxes to meet the growing unsustainable demand for pensions and compensation packages for state workers despite California being the second highest taxed state in the union."

The Daily News reports that it was unable to reach Manson at the phone number listed for his residence in a Carson trailer park.