Voters in Detroit will decide whether to keep Mike Duggan as mayor for another four years or to replace him with a state senator whose father was the city's first black mayor.
State Sen. Coleman Young II is challenging Duggan in Tuesday's general election. City elections officials have said 13 to 18 percent of registered voters are expected to cast ballots.
Duggan got more than 67 percent of the vote to Young's nearly 27 percent in the nonpartisan August primary. Both are Democrats.
Duggan is the former chief of the Detroit Medical Center. He was first elected in 2013, months after a state-appointed manager filed for Detroit's historic bankruptcy.
Young was elected to the Michigan Senate in 2010. His father, Coleman A. Young, served 20 years as mayor.