UPDATE, May 31, 2012
While we have already shared some of the critiques of this fact-check in a previous follow-up story, critics have since noted that two of our fellow fact checkers -- the Washington Post Fact Checker and the Associated Press -- offered more negative rulings on related claims.
The Fact Checker addressed the apparent discrepancy succinctly in a follow-up column, saying "we did not evaluate the same thing."
There’s a widespread misconception that we gave a Mostly True rating to Rex Nutting’s MarketWatch column. After our original fact-check published, White House spokesman Jay Carney tweeted, "PolitiFact backs MarketWatch analysis of federal spending under POTUS & predecessors." Many conservative bloggers read our fact-check the same way, as they attacked us.
The assumption made by both sides is wrong. We examined at a Facebook post