Liberal churches have been mixing politics and religion forever.   How many times have conservative candidates not been allowed in the pulpit while with liberals it happens all the time. Now, I have never heard one speak from the pulpit, but I would be surprised if it did not include something from the stump speech.   
By the way, it is because I put the pulpit as a special place that I worded my post the way I did.   I do not want someone who would deny the Word of God in the pulpit.
True, the midwest might have a tendency to try to frame things from a conservative perspective, Almost all public schools in the US are required to teach that there is no Creator.  They are also required to teach various other liberal or unbeliever doctrines.
To me that makes them church organizations that teach their own belief system.   No problem.   Just admit that the government has established a religion and is pushing it.