As the Brits would say, "Posh." In fact, from the beginning of the series of recalls initiated by the unions, Scott Walker spent about $30 million total; Tom Barrett and the unions spent $25 million. That's an advantage, but it's not astronomical -- especially when one considers that the unions already had impressive ground and field operations, while Republicans had largely to construct them.
What's more, contrary to the Dem spin, Citizens United had no impact on the race; none of the money raised on behalf of Walker or his allies would have been illegal before that Supreme Court case was handed down.
Yes, it's infuriating to hear the scale and significance of Walker's victory routinely downplayed or dismissed as a result of a supposed huge money gap. But every minute that the left and its allies spend fulminating against "facts" that aren't true is one less minute they spend trying to figure out what really went wrong so they can make their liberal, Big-Government message more appealing before November.