The last debate between the two presidential candidates - Republican George W. Bush and Democrat Al Gore - took place Tuesday at the University of Washington in St. Louis.
Diana Carlin, University of Kansas communication studies professor, said both Bush and Gore engaged in a more heated debate.
"(It was an) aggressive debate by both of them," Carlin said.
David Birdsell, an expert on presidential debates and Baruch College professor of public affairs, said each candidate tried to highlight the differences between himself and his opponent in the St. Louis debate.
"(Gore) clearly wanted to create sharp contrasts," he said.
But Bush also tried to show voters the differences between himself and Gore.
"(Bush) clearly wanted to show Al Gore is not like you and me," Birdsell said.
Carlin said this debate was very different from the previous two since it allowed citizens in the audience to ask the candidates questions on issues important to them.
Audience members asked questions about education and capital punishment during the third debate.