Police in Albuquerque, New Mexico, say that the homes and businesses of four local and state politicians have been shot at since December, NBC News reports. There were no injuries in the shootings that targeted the homes of two county commissioners and a state senator and the law office of a second state senator — all Democrats. Police are investigating whether or not the shootings are linked. Albuquerque Mayor Tim Keller called the incidents “very serious,” and he asked for the public’s help in finding the culprits. “We are worried and concerned that these are connected and possibly politica…