Here's an excerpt:
Rep. Joe Sestak (D-PA) is privately telling supporters that he intends to run for Senate, TPMDC has confirmed.
"He intends to get in the race," says Meg Infantino, the Congressman's sister, who works at Sestak for Congress. "In the not too distant future, he will sit down with his wife and daughter to make the final decision."
The move would constitute a primary challenge to Sen. Arlen Specter (D-PA), who intends to run for re-election in 2010, after having switched parties earlier this year.