IOWA CITY, Iowa (AFP) – US President Barack Obama Thursday launched a sales blitz for his historic health care reforms, as Democrats battled deep Republican anger to finish a set of fixes to the law. Obama returned on Air Force One to Iowa, the cradle of his 2008 campaign, to proclaim he had made good on the political change he promised, by enacting reforms dreamed of by Democrats for generations, but never realized until now. The president was also expected to take on Republicans as they seek to define the historic bill as a costly, big government power grab, in...