UPDATE: (4:20 p.m.)

Slatts just called. He's looking. He's thinking. "It's not going to take long," he said of making a decision.

He'd like some clarity on the presidential race before pulling the trigger. "That's not the sole consideration, but it's certainly a factor, as you can imagine."

***

Former 2nd District Kansas Congressman Jim Slattery tells Prime Buzz he's reconsidering his decision not to challenge two-term incumbent Sen. Pat Roberts this year.

Slattery, a Democrat, weighed the race last year before backing away.

The only Democrat in the race now is Lee Jones, a 56-year-old railroad engineer from Overland Park who ran unsuccessfully for the Senate in 2004.

Insiders say Jones is not positioned to give Roberts, a Republican, a major challenge.

More later.