Mickey Kaus, an online political blogger on the Slate Web site, has taken out nomination papers to challenge U.S. Sen. Barbara Boxer in June's Democratic primary.
Kaus, who lives in Southern California and is the son of former state Supreme Justice Otto Kaus, portrays himself as a centrist Democrat and has been particularly critical of his party's position on illegal immigration.
Kaus explained his embryonic candidacy in his own Slate column, which is dubbed KausFiles, saying, "The basic idea would be to argue, as a Democrat, against the party's dogma on several major issues (you can guess which ones). Like-minded Dem voters who assume they will vote for Sen. Boxer The Incumbent in the fall might value a mechanism that lets them register their dissent in the primary."
Kaus, who often comments on California issues, said it's uncertain how his candidacy would affect his position with Slate.