On "This Week," George Stephanopoulos and President Obama have a colorful discussion over Obama's health care reform proposal. <br /><br />Stephanopoulos takes issue with a mandate that obligates Americans to purchase health insurance, or risk being fined as much as $900. "How is that not a tax?" <br /><br />"A responsibility to get health insurance is not a tax increase," Obama said. <br /><br />Stephanopoulos then tells Obama that he looked up the definition of "tax" in Merriam Webster's dictionary. <br /><br />"The fact that you looked up... the definition of tax increase indicates that you're stretching a little bit right now," Obama responded.
