Less than a week after considering running to be Democratic National Committee chairman, former Maryland Gov. Martin O’Malley has changed his mind.

“While I’m grateful to the supportive friends who have urged me to consider running for DNC Chair, I will not be seeking our Party’s Chairmanship,” O’Malley wrote in an email to supporters on Wednesday.

“The national interest must come first,” he wrote.

The committee chair needs to be someone who will do the job fully and impartially, he added.

On Friday, O’Malley tweeted that he was “taking a hard look” at the position after fellow Democrats approached him looking for new party leadership.

vision, recommit ourselves to higher wages and a stronger middle class, and return to our roots as a nationwide, grassroots party. (3/3)
— Martin O’Malley (@MartinOMalley) November 11, 2016

O’Malley, who previously served as the mayor of Baltimore, ran for president in 2016 but ended his bid in early February during the Iowa caucuses.