President Obama issued this statement today: 

"Harry Reid called me today and apologized for an unfortunate comment reported today.  I accepted Harry's apology without question because I've known him for years, I've seen the passionate leadership he's shown on issues of social justice and I know what's in his heart.  As far as I am concerned, the book is closed."

Read more about what Senate Majority Leader Harry Reid originally said as reported in a book here.