McCain Train Gets a Head of Steam

John McCain's strong campaign remains challenged a bit by Huckabee, but after today's strong showing in Virginia and the "Potomac Primaries", he remains the clear leader. The key question that remains on the Republican side of the presidential equation is whether McCain will pick Mike Huckabee as running mate or try to choose a moderate who can help him win in the states that have moderate political bases. I doubt McCain knows what he'll do yet because it is still not clear how conservatives will treat his candidacy.