Education
Missouri State University.
Missouri State University.
McKenna has lived in Jefferson County, Missouri his entire life. He graduated from Saint Pius X High School in the Twin City area and went on to attend Jefferson College, playing on their State Championship baseball team in 1993. He graduated from Missouri State University (formerly Southwest Missouri State University) in 1996, where he received a Bachelor of Science degree in Education.
Previously he was a member of the Missouri House of Representatives from 1999 through 2006.