(CNN) - The candidates hit the trail Wednesday, making stops in North Carolina, New York, Texas and Iowa.
See their full schedules after the jump.
8 a.m. ET - Former House Speaker Newt Gingrich speaks at the Gaston County GOP Breakfast in Cramerton, North Carolina.
9:45 a.m. ET - Gingrich visits Lincoln Charter School in Denver, North Carolina.
11:45 a.m. ET - Gingrich has lunch at the Cherokee Street Tavern in Kings Mountain, North Carolina.
1:30 p.m. ET - Gingrich visits Thomas Jefferson Classical Academy in Mooresboro, North Carolina.
2:15 p.m. ET - President Barack Obama wraps up a two-day tour of three battleground states with a stop at the University of Iowa to push for an extension of a law that cuts interest rates on a popular federal student loan program.
2:45 p.m. ET - Gingrich throws out the first pitch at Gardner Webb University Baseball Game in Boiling Springs, North Carolina.
9 p.m. ET - Rep. Ron Paul of Texas holds a campus town hall meeting in El Paso, Texas.
Also Wednesday, likely Republican nominee Mitt Romney holds private fundraisers in New Jersey and New York.