On November 24, 2014, Monestime's colleagues on the Miami-Dade County Commission unanimously elected him as the body's chairman for a two-year term. Monestime, who began his term as commission chairman on January 1, 2015, became the first Haitian American to chair to the County Commission. He succeeded outgoing Chairwoman Rebeca Sosa, who remained a member of the County Commission. The commissioners are officially nonpartisan, although Monestime is a member of the Democratic Party.
