Actually, when he starts talking politics, you have a right to express your political opinion as well. You should have risen and asked for rebuttal time...an excercise in being "fair and balanced." He is there to instruct you in the faith, and when he spouts his own political ideas, he is abusing his position. If more Christians did this regularly, we'd have less liberal propaganda being ladled out from the pulpits of this country.
The difficulty here is that he went right to the line but didn't cross over by too much. For example, the quote I cite: "lady camped out in Texas asking for healing AND ACCOUNTABILITY"; he didn't mention the president and that Sheehan is not asking but demanding a meeting. Quite clear to us at FR what's going down but for people who are not following the story closely, his comment may sound quite reasonable.