NEW : President Obama called for ` ` new era '' of good governance in Afghanistan . Karzai made president after withdrawal of opposition leader Abdullah Abdullah . Abdullah resigned Sunday , saying he believed the second round would be as fraudulent . Hamid Khan has been president of Afghanistan since December 2004 .
NEW : President Obama called for `` new chapter '' of improved governance in Afghanistan . Karzai made president following withdrawal of opposition leader Abdullah Abdullah . Abdullah withdrew Sunday , saying he believed the second round would be as fraudulent . Hamid Karzai has been president of Afghanistan since December 2004 .