"Do you bash the President and the GOP in front of other volunteers? I am just curious how the campaigns feel about this."
Most other hardcore volunteers I've met tend to be more conservative than the candidates. So, yes. When deserved!
I spent the *entire night* before the Nov 2004 election out putting up signs, for example. Then I spent election day being a "runner" bringing tear sheets from polling places back to the campaign HQ. How about you?
I wouldn't call it bashing though - I'd refer to it at calling them out on their liberal leaning actions.