Wilson is a proven liar. The bipartisan Senate Intelligence Committee looked at Wilson's claims and showed then flat out wrong. Bush authorized a release that showed how Wilson was lying. Was he just supposed to let the lie stand without challenge?

From the Washington Post

Former ambassador Joseph C. Wilson IV, dispatched by the CIA in February 2002 to investigate reports that Iraq sought to reconstitute its nuclear weapons program with uranium from Africa, was specifically recommended for the mission by his wife, a CIA employee, contrary to what he has said publicly.

Wilson last year launched a public firestorm with his accusations that the administration had manipulated intelligence to build a case for war. He has said that his trip to Niger should have laid to rest any notion that Iraq sought uranium there and has said his findings were ignored by the White House.

Wilson's assertions -- both about what he found in Niger and what the Bush administration did with the information -- were undermined yesterday in a bipartisan Senate intelligence committee report.

The panel found that Wilson's report, rather than debunking intelligence about purported uranium sales to Iraq, as he has said, bolstered the case for most intelligence analysts. And contrary to Wilson's assertions and even the government's previous statements, the CIA did not tell the White House it had qualms about the reliability of the Africa intelligence that made its way into 16 fateful words in President Bush's January 2003 State of the Union address.

Yesterday's report said that whether Iraq sought to buy lightly enriched "yellowcake" uranium from Niger is one of the few bits of prewar intelligence that remains an open question. Much of the rest of the intelligence suggesting a buildup of weapons of mass destruction was unfounded, the report said.

The report turns a harsh spotlight on what Wilson has said about his role in gathering prewar intelligence, most pointedly by asserting that his wife, CIA employee Valerie Plame, recommended him.

Plame's role could be significant in an ongoing investigation into whether a crime was committed when her name and employment were disclosed to reporters last summer.

I get it. You must see Jimmy Carter's breaking the existence of the most highly classified program in the country at the time (stealth) to help his reelection as not being for "purely political purposes", but Bush's responding to Wilson's public lies by revealing the truth is worthy of impeachment. Does that cover your view? If so, then I really feel sorry for you.