Democrat Maura Healey has won the race for Massachusetts attorney general, topping Republican John Miller to become the nation’s first openly gay candidate elected to the top law enforcement job.

Healey has spent seven years in the attorney general’s office and was the former chief of the civil rights division.

She said she had the experience to do the job and will hit the ground running.

Healey is best known in the LGBT community for her work as assistant attorney general on the Massachusetts challenge to the Defense of Marriage Act, a lawsuit complementary to one led by Gay & Lesbian Advocates & Defenders.