NEW : Hillary Clinton : Clinton mentioned Obama by name more than twice as many times as she mentioned the party as a whole . The time is now for Democrats to unite . NEW : Barack Obama calls Clinton and thanks her for her support . Comment: Former Virginia Gov . Mark Warner appeals across party lines in keynote address .
NEW : Hillary Clinton : The time is now for Democrats to unite . NEW : Barack Obama calls Clinton and thanks her for her support . Comment: Former Virginia Gov . Mark Warner appeals across party lines in keynote address .