Phil Arballo ran twice for Congress, unsuccessfully, before taking a job at the Charles Schwab investment company branch in posh Los Altos, where he was fired because his boss discovered he had run as a Democrat, he claimed in a lawsuit filed this week. Schwab in a statement Friday called the lawsuit’s allegations “unwarranted,” and said it would respond to them in court. Arballo ran for U.S. House of Representatives seats in the Central Valley …