Bennett’s victory over three other Democrats on Tuesday sets up the state’s premier contest in November, when the party hopes it can flip the onetime Republican stronghold that has proven competitive in recent years.

The pressure is ratcheting up in the 7th Congressional District as Democrats are hoping to unseat Kean in their bid to regain control of Congress.

Democrats testing their chances in a right-leaning New Jersey battleground district are picking their nominee in a House primary to take on Republican incumbent Tom Kean Jr.,…