A pair of senior politicians from a town in Southern California’s high desert are under investigation for allegedly receiving money from a controversial Chinese electric car maker, the Post can reveal. Lancaster Vice Mayor Marvin Crist and city Councilmember Raj Malhi were dramatically escorted by FBI agents from their homes at gunpoint in a series of raids on April 15, according to a source with detailed knowledge of the operation. Officials seized documents and electronic devices from their homes as part of the sweeping probe. FBI agents searched the homes of Lancaster Vice Mayor Marvin Crist (left) and city Councilmember…