While there is more of a sense of inevitability in Mitt Romney’s nomination now that ever before–Rick Santorum must win 70% of the remaining delegates to win the nomination–it seems every time Romney does wins big, he or his campaign follows up with a another gaffe.

Meanwhile, Rush Limbaugh argued yesterday that “the conservative alternative to Romney might be Romney himself”. His argument was based on a perceived shift in message from Romney. However, it may also be in preparation for what is likely an inevitable nomination at this point.

Finally, Political Calculations presents an interesting case on the failure of a Pigovian tax, which would likely make Romney economic adviser and Pigou Club founder N. Gregory Mankiw cringe.