State Sen. Bobby Zirkin faces a strong challenge this year from retired attorney Sheldon Laskin, who has galvanized the support of many progressive voters in the county who believe the incumbent is wrong on crucial issues. In some respects — such as bail reform, on which Mr. Zirkin has been a skeptic — we agree with them. But Mr. Zirkin, the chairman of the Judicial Proceedings Committee, isn’t easy to pin down as conservative or liberal. While he championed legislation this year that many thought was too focused on discredited, tough-on-crime strategies, he was also the driving force behind Maryland’s decriminalization of marijuana. He also has a strong environmental record, including leadership in the state’s decision to ban fracking. Mr. Laskin would be a good senator — his expertise in state taxation for example, is impressive — but Mr. Zirkin has our endorsement. In the delegates race, we endorse both incumbents, Dels. Dana Stein and Shelly Hettleman, who have been strong leaders in Annapolis. For the third seat, vacated by the retirement of Dr. Dan Morhaim, we endorse the comeback bid of former Del. Jon Cardin. The issues he focused on during his previous stint in the legislature — cyberbullying, election security and domestic violence — have only become more salient since.