WASHINGTON, D.C.— With the air gushing out of John Kerry's balloon, it may be only a matter of time until political insiders in Washington face the dread reality that the junior senator from Massachusetts doesn't have what it takes to win and has got to go. As arrogant and out of it as the Democratic political establishment is, even these pols know the party's got to have someone to run against George Bush. They can't exactly expect the president to self-destruct into thin air. With growing issues over his wealth (which makes fellow plutocrat Bush seem a charity case by...