HARRISBURG, Pa. (AP) - More TV money is starting to flow in Pennsylvania's Democratic primary for U.S. Senate.

A new group named Accountable Leadership began airing 30-second TV ads Thursday across much of Pennsylvania. It supports Joe Sestak.J.J. Balaban, a partner in the firm that made the ad, says it'll run for a week at a price tag of $250,000.Sestak is running in a four-way Democratic primary in hopes of a rematch against Republican Sen. Pat Toomey.Accountable Leadership is a super PAC and can accept unlimited cash donations. Its donors could remain a secret until April 15, its next federal filing deadline.Sestak is running against John Fetterman, Katie McGinty and Joe Vodvarka.McGinty began running a daily TV ad this week, and Fetterman's campaign is running ads in spots.