What to watch in the Arizona special election to fill Grijalva's seat

Former Pima County supervisor Adelita Grijalva (D) and small businessowner Daniel Butierez (R) are vying for the chance to replace the late Rep. Raúl Grijalva (D-Ariz.) to represent Arizona’s 7th Congressional District in Tuesday’s special election. Grijalva died in March due to complications related to his cancer treatment, opening up a House seat that spans most of the...