Clinton hits back at Bush over Iraq Democratic presidential hopeful Hilary Clinton has hit back at one of her Republican rivals, Jeb Bush, over who is responsible for instability in Iraq.On Tuesday Mr Bush accused the Obama administration of a "premature withdrawal" of US forces from Iraq in 2011, with "grievous" costs.Ms Clinton replied by saying it was Mr Bush's brother George W Bush who, as president, negotiated a US withdrawal.The US-led war in 2003 has been followed by years of turmoil.