Should the U.S. Attorney be bashing a candidate for U.S. Senate?

Some political insiders say that U.S. Attorney Christopher Christie, a likely candidate for the 2009 Republican gubernatorial nomination, might have crossed the line last weekend when he criticized Morristown Mayor Donald Cresitello, a candidate for the Democratic U.S. Senate nomination, in a speech before a non-political group last weekend. “I don’t think it’s helpful when a mayor of a town in New Jersey stands up at a rally and calls people he believes to be undocumented ‘pinkos’ and communists,” the Daily Record reported him as saying.

Cresitello says Christie should resign: “I’m a candidate for federal office. He should not be involving himself in that process,” Cresitello told the Daily Record.

Should the U.S. Attorney be bashing a candidate for U.S. Senate?