Jim Langevin ran as a State Delegate to Rhode Islands Constitutional Convention in 1986 and served as its secretary. Two years later, he won election to his first term in the Rhode Island House of Representatives.
In 1994, Langevin embarked on his first campaign for statewide office, ultimately defeating a one-term Republican incumbent to be Rhode Island's secretary of state.
In 1998, Langevin easily won re-election to his second term as secretary of state, achieving the largest plurality of any general officer in this century. In 2000, Langevin took 62 percent of the vote, followed by independent Rodney Driver with 22 percent; Republican Robert Tingle with 14 percent; and Green Party candidate Dorman Hayes at 2 percent, with all precincts reporting, in the race for the U.S. House.
Langevin succeeded Rep. Robert Weygand, who left to run unsuccessfully for U.S. Senate.
In 2002, Langevin was re-elected with 76 percent of the vote.