Updated

Anchorage Mayor Mark Begich announced he will form an exploratory committee to help decide if he should run for the U.S. Senate seat held by Ted Stevens, who is under a federal investigation.

Begich said at a news conference Wednesday that he will make a final decision well before the June 1 deadline.

He said forming the committee will allow him to raise funds and talk to Alaskans, to see if they think it's time for a change of leadership.

Begich has been courted by the top Democratic leaders to challenge Stevens, who is being investigated over a home remodeling project. Stevens is the nation's longest serving Republican senator.