Answer: an appeal based on logic.
In this case, President Clinton is using an appeal based on logic in order to convince the audience of a particular position. We know this is an appeal on logic because his arguments provide concrete evidence and statistics that support it. He argues that the economy has added more than 22 million new jobs. He also states that his government has achieved the lowest level of unemployment in 30 years, as well as the highest homeownership ever. All of these are falsifiable facts that support his argument.