The Tea Party-aligned Conservative Campaign Committee, however, has said it plans to spend up to $200,000 on radio and television ads to support Sullivan and target Winslow and Gomez.
Winslow and Gomez have called on Sullivan to renounce the ads by the group, which they say holds extreme anti-gay positions. The radio ads the group recorded criticize Winslow and Gomez, but make no references to gay issues. Sullivan has said he’s not familiar with the group.
The three Republican candidates have not agreed to the ‘‘People’s Pledge.’’ They note that Lynch and Markey began the campaign with hefty stockpiles of money.
The independent expenditures by outside groups give no indication how much each candidate has raised in donations so far. The first reporting filing deadline in the race is April 18, less than two weeks before the primary.
The special election to fill the seat left vacant by the resignation of John Kerry to become secretary of state is June 25.