Philip D. Murphy, New Jersey’s former governor, did enact legislation to protect the rights of undocumented residents at schools, courthouses and health care facilities.

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Ms. Sherrill beat a Republican endorsed by President Trump and did what no politician in New Jersey has done since 1961: win her party a third consecutive term in the governor’s office.

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An anonymous negative ad campaign has been aimed at New Jersey’s departing attorney general. “It’s a warning to others,” one political scientist said.

© Hannah Beier for The New York Times