Carson was drafted 7th overall in the 2008 WNBA Draft by the New York Liberty. She helped the Liberty win the first round series of the 2008 playoffs, but the Liberty fell short in the eastern conference finals against Detroit Shock who won the championship that year. In the 2011 season, Carson was voted a WNBA All-Star for the first time in her career despite being a reserve on the Liberty's roster, she had averaged 11.3 points per game. In the 2011 WNBA All-Star Game, Carson scored 13 points for the eastern conference team.