I can't find the legislation you are talking about. But, if you read the IRS rules, it looks like to me some churches are already in violation of 501c3 rules. Rules are rules. But, to each his own. Just my opinion.
I didn't mean individuals cannot get involved in politics, I meant that churches should not, from the pulpit. Politics is such a dirty and corrupt business that I doubt any Christian would get involved or stay involved in them. You mite say that I keep up with politics somewhat.