A lawyer who helped win a legal battle to strike down Michigan's gay marriage ban is running for state attorney general.
Dana Nessel, a Democrat, will announce her campaign Tuesday in Ann Arbor.
Democrats and Republicans will choose their attorney general nominees at conventions next summer. Pat Miles, the former U.S. attorney in Grand Rapids, is signaling he too will seek the Democratic nomination, saying Tuesday to "stay tuned."
Second-term Republican Attorney General Bill Schuette can't run again due to term limits and is expected to enter the governor's race.
Nessel is a criminal defense attorney and former assistant prosecutor who also advocates for LGBT rights. She was one of the two lawyers in the DeBoer vs. Snyder case, which challenged Michigan bans against same-sex adoption and marriage.