Grayslake Trustee Laura Faver Dias, left, and Waukegan Director of Government Operations Tom Maillard, right, are running in the Democratic primary for the 62nd House District. [Campaign websites] 

Rep. Sam Yingling’s (D-Grayslake) decision to run for Senate has opened the door to three local government leaders in Lake County who are hoping to advance their political careers with a nomination from Democratic voters in the 62nd House District.