Schmalz, Valerie (July 29, 2005). "Interview with Bob Casey Jr". Ignatiusinsight.com. Archived from the original on September 25, 2021. Retrieved September 20, 2011.
"Governor, 2002 General Primary". Commonwealth of PA – Elections Information. Pennsylvania Department of State. 2004. Archived from the original on September 28, 2011. Retrieved May 16, 2008.
Schmalz, Valerie (July 29, 2005). "Interview with Bob Casey Jr". Ignatiusinsight.com. Archived from the original on September 25, 2021. Retrieved September 20, 2011.
"Governor, 2002 General Primary". Commonwealth of PA – Elections Information. Pennsylvania Department of State. 2004. Archived from the original on September 28, 2011. Retrieved May 16, 2008.