Freshman Rep. Harry Mitchell, representing a Republican district in Scottsdale/Tempe, Arizona, was subject to a withering assault by way of the well-known 'ads'.  His principled and resounding rejection of immunity is detailed in a My Turn column in yesterday's Arizona Republic (azcentral.com)  

Sorry, I'm link-challenged, but this is an inspired and inspiring retort by the former Tempe Mayor who taught Government for more than twenty years.

If someone can link this, you won't regret it!!!!