UPDATE: Fired Americorps Inspector Liar Says Obama is Lying

Of course he's lying. That's what the man does.

Gerald Walpin, who until last week was the inspector general for the Corporation for National and Community Service, tells FOXNews.com that part of President Obama's explanation for firing him was a "total lie" and that he feels he's got a target on his back for political reasons.

The government watchdog President Obama canned for allegedly being "confused" and "disoriented" fired back sharply Wednesday, saying the White House explanation for removing him was "insufficient," "baseless" and "absolutely wild."

"I am now the target of the most powerful man in this country, with an army of aides whose major responsibility today seems to be to attack me and get rid of me," Walpin said.

Facing bipartisan criticism for the firing, Obama sought to allay congressional concerns with a letter to Senate leaders Tuesday evening explaining his decision. In the letter, White House Special Counsel Norman Eisen wrote that Walpin was "confused" and "disoriented" at a May board meeting, was "unduly disruptive," and exhibited a "lack of candor" in providing information to decision makers.

"That's a total lie," Walpin said of the latter charge. And he said the accusation that he was dazed and confused at one meeting out of many was not only false, but poor rationale for his ouster.

"It appears to suggest that I was removed because I was disabled -- based on one occasion out of hundreds," he said.

"I would never say President Obama doesn't have the capacity to continue to serve because of his (statement) that there are 56 states," Walpin said, adding that the same holds for Vice President Biden and his "many express confusions that have been highlighted by the media." Obama mistakenly said once on the campaign trail that he had traveled to 57 states.