The field of candidates looking to succeed the late Rep. Raúl Grijalva is starting to take clearer shape a couple of days after his death left a vacancy in Arizona's congressional delegation.

Long-serving Rep. Raúl Grijalva died Thursday after a battle with lung cancer, ending his decades-long career in public service and leaving a gap in Arizona's representation on Capitol Hill.

Veteran U.S. Rep. Raúl Grijalva diedThursday at 77 years old. One of Arizona's longest-serving congressmen, Grijalva was a fixture of Tucson politics and eventually became known in Washington as a ...