Decisions by Republican incumbent Peter Fitzgerald and his Democratic predecessor Carol Moseley Braun to not participate in the election resulted in wide-open Democratic and Republican primary contests involving 15 candidates. In the March 2004 primary election, Obama won in an unexpected landslide—which overnight made him a rising star within the national Democratic Party, started speculation about a presidential future, and led to the reissue of his memoir, "Dreams from My Father". In July 2004, Obama delivered the keynote address at the 2004 Democratic National Convention, seen by nine million viewers. His speech was well received and elevated his status within the Democratic Party.