Just seven months into his tenure, former U.S. Senator Scott Brown has resigned as CEO and dean of New England Law Boston and plans to return to politics.

Brown, a one-time golden boy of the national Republican party, told GBH News the split with New England Law was "amicable." The former lawmaker, who served as the U.S. Ambassador to New Zealand during the Trump administration, said he will not run for office in 2022, but will instead concentrate on helping other candidates.

"I am going to help people that I feel can help unite our country," Brown said.

Brown became dean and CEO of the law school in January of this year.

Brown's political career began in the Massachusetts Legislature before his upset, special-election victory against Martha Coakley in 2010 to win the U.S. Senate seat left open by the death of Ted Kennedy. After two years in the Senate, Brown was unseated by Elizabeth Warren in 2012.

Trump named Brown to the New Zealand post after Brown, now a New Hampshire resident, ran unsuccessfully against U.S. Sen. Jeanne Shaheen.