Businessman David Perdue entered the crowded race for the Republican U.S. Senate nomination in Georgia on Wednesday, releasing a video decrying government overreach and blaming "career politicians" for dysfunction in Washington.

"If we want different results from Washington, we just have to send a different kind of person to Washington,"  said Perdue, the former chief executive of Dollar General and the cousin of former Republican governor Sonny Perdue.

Perdue announced in May that he would form an exploratory committee for the Senate race, so his decision is not a surprise.

Perdue joins a GOP field that already includes Reps. Paul Broun, Jack Kingston and Phil Gingrey, and former Georgia secretary of state Karen Handel. On the Democratic side of the race to replace retiring Republican Sen. Saxby Chambliss, Michelle Nunn is the early front-runner. Nunn, the daughter of former senator Sam Nunn, launched her bid this week.

Perdue underscored his private-sector experience in his announcement video. "We can send a message to Washington insiders that we the people expect and deserve better than what we are getting from our government right now," he said.