After Obama's win in the South Carolina primaries on January 26, he received high-profile endorsements from Caroline Kennedy, daughter of former President John F. Kennedy, as well as Senator Ted Kennedy, the former President's brother. Ted Kennedy's endorsement was considered "the biggest Democratic endorsement Obama could possibly get short of Bill Clinton or Al Gore." On January 31, Obama and Clinton met for the first time in a one-on-one debate, and they struck a friendly tone, seeking to put the racially charged comments of the previous week behind them. Obama surged nationally in the polls and held campaign rallies that drew audiences of over 15,000 people in several states.