The Associated Press reports:
U.S. Sen. Scott Brown and his chief Democratic rival Elizabeth Warren have both signed a pledge to curb political attack ads by outside groups.
Warren on Monday sent a letter to Republican incumbent Brown urging him join her and sign an agreement to prevent third-party ads. Brown signed the pledge minutes later.
Brown had previously proposed that each campaign donate from its own account to a charity of the other’s choosing, an amount equal to 50% of the ad buy of a third-party group that either supports that candidate or attacks the opponent. Warren’s counter-offer, now signed by Brown, addressed what Warren regarded as loopholes in the proposal.
The Boston Globe notes that the negotiations involved much political wrangling by both sides.