Republican Bob Stefanowski on Wednesday morning conceded a tight race for governor of Connecticut to Democrat Ned Lamont.

“A few moments ago, I called Ned Lamont to concede the race for governor and congratulate him on a hard-fought victory,’’ Stefanowski said in a statement released shortly after 9 a.m. “I wish both Ned and the state of Connecticut success over these next four years.”

At the time of his concession, Lamont was leading 48.4 percent to 47.1 percent, according to the Associated Press.

Lamont, a business executive, gained national attention in 2006 for defeating then-Sen. Joseph I. Lieberman (D-Conn.) in a Democratic primary. In the general election, Lieberman won running as an independent.