Kos diarist Think Blue argues against those who maintain that impeachment is impractical and a distraction from other legislation. The argument comes down to this: We do not know what investigation of impeachment charges will bring.
My argument: Even if such investigations do not bring about removal of the President, they will weaken him. I do not see a "1998 effect" taking place in 2007. The weaker W becomes, the easier it is for people within his party to oppose his policies. One does not need too much imagination to see a situation in which a few Republican senators decide to bargain: "I won't vote for removal, but I will vote with you on Iraq."
Pragmatism demands impeachment.