What to watch: The race for governor in this blue state has become heated, with a vast and varied field of businessmen, mayors and veterans competing on both sides to succeed Dannel P. Malloy, a two-term Democratic governor who is not running for re-election. Read more

Republicans include David Stemerman, a Yale- and Harvard-educated former hedge fund manager; Bob Stefanowski, a business executive and former Democrat; and Mark D. Boughton, the mayor of Danbury. On the Democratic side are Ned Lamont, a prominent businessman who ran for governor in 2010 and lost, and Joseph P. Ganim, the mayor of Bridgeport, who was re-elected after serving seven years in prison on corruption charges.

None of the state’s House races are considered particularly competitive in the general election, and all five districts are expected to stay under Democratic control. Two Democrats are running in the Fifth District, the only open seat: Mary Glassman, a former first selectman, and Jahana Hayes, a political newcomer. They are running to replace Representative Elizabeth Esty, a Democrat, who said she would not defend her seat after she was accused of mishandling sexual harassment accusations against her former chief of staff.

— SYDNEY EMBER

Read more about today’s most important races.