Vice President Joe Biden hands a copy of the book "Joe Biden" to an aide after someone gave it to him after he addressed a grassroots rally, Tuesday, Aug. 21, 2012, in Minneapolis. (AP

 

              Vice President Joe Biden hands a copy of the book "Joe Biden" to an aide after someone gave it to him after he addressed a grassroots rally, Tuesday, Aug. 21, 2012, in Minneapolis. (AP
Vice President Joe Biden hands a copy of the book "Joe Biden" to an aide after someone gave it to him after he addressed a grassroots rally, Tuesday, Aug. 21, 2012, in Minneapolis. (AP Photo/Jim Mone)