<p>I would put it on there. It shows commitment, political involvement, and that you care about being involved with the community. If you’re really concerned, the approach of “I volunteeered ___ hours during the 2004 presidential campaign” is a good compromise (although I would tend to go for full disclosure. If they reject you based on political views, which I highly doubt they would, then do you really want to be at that school anyway)</p>