Are Congressional Republicans myopic? Or just really bad at math?

Last week, the national Republican Party unveiled their Pledge to America. If you watched the brilliant Jon Stewart piece on this, you know that the much-ballyhoo'd Pledge is the Same Old Sh-- from the Grand Old Party (AKA, the Party of No Ideas): tax cuts for the rich (AKA, trickle down economics); elimination of "Obamacare" (AKA, pay-your-own-way heal…