Compiled by Rebecca Sinderbrand, CNN Associate Political Editor
* Hillary Clinton is in South Carolina, where she delivers a speech on the economy in Greenville before heading to Anderson.
* John Edwards holds “Back Home, Back Roads Barnstorm” events in Greenwood and Seneca.
* Rudy Giuliani attends a rally in Boca Raton, Florida, and participates in a presidential debate there in the evening.
* Mike Huckabee participates in the presidential debate in Boca Raton.
* John McCain holds a fundraiser in the morning followed by town halls and media availabilities in Palm Beach and West Palm Beach. Later he attends a pre-debate party in Deerfield Beach, and participates in the presidential debate in Boca Raton.
* Barack Obama is in South Carolina, where he attends a campaign event in Kingstree, a roundtable discussion in Beaufort, and rallies in Beaufort and North Charleston.
* Mitt Romney attends a pre-debate rally in Miami, and participates in the presidential debate in Boca Raton.