A crowded '08 field on the left

Sen. John Kerry is saying that he won't rule out running again, it is widely thought his running mate John Edwards is also considering a bid. Gen. Wesley clark is saying that he is leaving all of his options open, Gov. Mark Warner remains popular in the red state of Virginia as does Gov. Bill Richardson of NM. But the NY Post reports that Tipper Gore has said that her husband Al is "eyeing" another race for the White House.