President Bush and challenger John Kerry are making a final push for votes with just two days left before Americans elect their next president.
Mr. Bush holds a total of four rallies Sunday in Florida and Ohio, while Senator Kerry attends church in Ohio before going on to rallies in Florida and New Hampshire.
Two new public opinion polls show the Republican president and his Democratic rival tied at 48 percent nationally. State-by-state polls show each man capable of winning the 270 electoral votes needed to claim the presidency.
Saturday, the candidates clashed over terrorism after the release of a new videotape from Osama bin Laden.
Mr. Bush accused his opponent of being weak, while Mr. Kerry said he would run a "smarter, more effective" war on terror.
Some information for this report provided by AFP and Reuters.