I've followed him since last March, but recently parted ways over the tax issue and its effect on electability (though I agree with him on it, he doesn't state his alternative well enough to win, and he's had months to fix it).
Now, sadly, the poll numbers in OK and AZ are hideous...and the polls have been either damn near accurate or wrongly slanted in favor of Dean so far. So, I hate to say it, Deaniacs, but if you're in OK or AZ you need to vote for Clark. If Kerry sweeps everything this week the race is over. Give Clark a couple states (and Edwards SC), then you're giving Dean a chance to get back in this thing. Yes, yes, I know that it would seem you're giving Clark momentum instead of Dean, but at this point it is in your interests to keep it > a one man race.
At any rate, Clark leads Kerry by only 1 in the Zogby in OK, and Clark+Dean in Arizona=Kerry.