Story highlights Amy Dacey is the highest-ranking official at the DNC to step aside due to the controversy

Two other high-level staffers also were out in the shake-up

(CNN) The CEO of the Democratic National Committee and two other high-level staffers left the organization on Tuesday in the wake of the committee's hacked email controversy.

Amy Dacey is the highest-ranking official at the DNC to step aside due to the matter, a senior Democratic official said. The DNC also announced the departure of CFO Brad Marshall and and Communications Director Luis Miranda in a press release Tuesday afternoon.

Dacey is well-respected by Hillary Clinton's campaign and the DNC circle, a source familiar with the resignation said. But the committee is looking to clean house in the wake of leaked emails that appeared to show the committee favoring Clinton over Bernie Sanders during the primary.

Dacey's resignation was first reported by Politico.

Interim Chairwoman Donna Brazile, who stepped in after the resignation of former Chairwoman Debbie Wasserman Schultz, also announced some additions to her team, saying former Howard Dean aide Tom McMahon would lead a transition team focused on November's election. The chief of staff that joined the DNC in June, Brandon Davis, will retain his post and oversee general election efforts, Brazile announced. Also joining as an interim senior adviser is Doug Thornell.

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