Recall frenzy remained in high gear Wednesday in California with investment sage Warren Buffett signing on as economic adviser to Arnold Schwarzenegger’s campaign.

Buffett, a registered Democrat with an estimated worth of $30 billion, plans to bring together other business leaders and economists to address the state’s financial issues. “It is critical to the rest of the nation that California’s economic crisis be solved, and I think Arnold will get that job done,” Buffett said in a statement.

President Bush will arrive today in California for a two-day fund-raising swing but he is not expected to appear with the actor or to offer any sort of official endorsement beyond his recent statement that he believed Schwarzenegger would make a “good governor.”

Meanwhile, former President Clinton is surfacing as a more active adviser to Gov. Gray Davis.

Art Pulaski, exec secretary-treasurer of the California Labor Federation, told reporters that Clinton has emerged as an important adviser to Davis. “The president is something of a political junkie and loves to advise people on his strategic ideas and I’m sure the governor is taking full advantage of that,” he added.

As of Wednesday’s deadline, the Secretary of State’s office had certified 135 contenders hoping to replace Davis in the special Oct. 7 election. Officials disqualified 112 potential candidates because of incomplete paperwork.

Also on Wednesday, Jay Leno invited all 135 candidates to appear on his Sept. 22 taping of “The Tonight Show.”

Schwarzenegger announced his candidacy last week on the show.