BOSTON (AP) - The Massachusetts Republican Party has filed an ethics complaint against Sen. Elizabeth Warren's chief of staff Mindy Myers.
In a letter to the U.S. Senate Ethics committee, the GOP points to an email from Myers sent from Warren's campaign account.
In the email, Myers includes a campaign fundraising appeal from Sen. Jeanne Shaheen, a New Hampshire Democrat. In her appeal Shaheen points to speculation that former Republican Sen. Scott Brown may be considering challenging her.
Brown has made several trips to New Hampshire and hasn't ruled out a run.
The GOP says the email, which was sent Friday afternoon, was an ethics violation because Senate rules bar campaign activity during official Senate duty and using taxpayer resources.
Warren's office said the email was sent by a separate vendor and did not use any government resources.