(CNN)  -- Like shifting weight on a seesaw, the Pentagon moved the lion's share of U.S. war troops in Iraq to Afghanistan in 2010, to reflect the nation's changing war strategy. Just months after Obama promised to reduce U.S. forces in Iraq, he faced a much-debated decision last year on whether to increase troops in Afghanistan. Supporters of the buildup said the strategy would bring a swifter end to the war, by allowing the United States to more quickly hand over security responsibility to Afghan forces. Opponents complained that the government of Afghan President Hamid Karzai was corrupt and had proven to be an unreliable partner.
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NEW: House Democrats struggle to maintain liberal support for Afghan war
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Obama accepts resignation of U.S. commander of Afghan war after explosive comments
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Obama pressed Afghan president to clean up alleged corruption in the government
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Obama: U.S. troops in Iraq will reduce to between 35,000 and 50,000 by August 31
"The @placeholder government has not demonstrated the focused determination, reliability and judgment necessary to bring this effort to a rational and successful conclusion," said Obey.
"Occupying @placeholder in support of a corrupt and incompetent government will continue to claim the lives of our soldiers," McGovern said.
@placeholder's re-election victory was tainted by accusations of voter fraud.