I believe separation of church and state is a myth promulgated by those who would like it to be so. I beleive there is nothing in the constitution that prohibits non-profit organizations from taking a political stand. If all organizations had to refrain from politics so also would the unions have to refrain.
What about the establishment clause and the commentary from the drafters of the Constitution, our Founding Fathers?! "Congress shall pass no law RESPECTING an establishment of religion." Keep in mind, aslo, that MOST of the founding fathers were Deists, not Christians. And, some were even atheists. There was an interest in keeping the Church away from the legislature, which is made clear by the quotes from our Founding Fathers included below.
Thomas Jefferson (Deist): “… I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should ‘make no law respecting an establishment of religion, or prohibiting the free
exercise thereof,’ thus building a wall of separation between Church and State.” ~~ Letter to the Danbury Baptists, January 1, 1802
John Adams (Deist): “The Government of the United States is not in any sense founded upon the Christian Religion.” 1797, The Treaty of Tripoli, initiated by President Washington, signed by President John Adams, and approved by the Senate of the United States
George Washington (Christian): “We have abundant reason to rejoice, that, in this land, the light of truth and reason has triumphed over the power of bigotry and superstition, and that every person may here worship God according to the dictates of his own heart. In this enlightened age, & in this land of equal liberty, it is our boast, that a man’s religious tenets will not forfeit the protection of the laws, nor deprive him of the right of attaining & holding the highest offices that are known in the United States.” ~~ Letter to the members of The New Church in Baltimore, January 1793
Benjamin Franklin (Atheist): “When a religion is good, I conceive it will support itself; and when it does not support itself so that its professors are obliged to call for the help of the civil power, ’tis a sign, I apprehend, of its being a bad one.”
James Madison (Deist): “The members of a Govt as such can in no sense, be regarded as possessing an advisory trust from their Constituents in their religious capacities. They cannot form an ecclesiastical Assembly, Convocation, Council, or Synod, and as such issue decrees or injunctions addressed to the faith or the Consciences of the people. In their individual capacities, as distinct from their official station, they might unite in recommendations of any sort whatever, in the same manner as any other individuals might do. But then their recommendations ought to express the true character from which they emanate.” ~~ Notes on Government Issued Religious Proclamations
Thomas Paine (Deist): “As to religion, I hold it to be the indispensable duty of government to protect all conscientious protesters thereof, and I know of no other business government has to do therewith. ” ~~ Common Sense, 1776.
“Persecution is not an original feature in any religion; but it is always the strongly marked feature of all religions established by law.” ~~ The Rights of Man, 1791-1792
“All national institutions of churches, whether Jewish, Christian or Turkish, appear to me no other than human inventions, set up to terrify and enslave mankind, and monopolize power and profit.”