The IRS has the authority to audit and fine congregations if they suspect them of campaigning or lobbying. The agency rarely exercises this right,.
Instead the IRS concentrates on stifling free speech of conservative groups.
"Lois Lerner, please pick-up the white courtesy phone."
The real problem is 501(c)(3) status. it enables the government to set rules for your operation.
The pastors have the right idea, just the wrong canidate. if they don`t know any more about the Bible than they do politics they need to let some one else do the preaching.