The LA Times has an interesting story on a Cal State Fullerton instructor, Wendy Gonaver, who was fired for refusing to sign the state's loyalty oath.
the day before class was scheduled to begin, her appointment as a lecturer abruptly ended over just the kind of issue that might have figured in her course. She lost the job because she did not sign a loyalty oath swearing to "defend" the U.S. and California constitutions "against all enemies, foreign and domestic."
The loyalty oath was added to the state Constitution by voters in 1952 to root out communists in public jobs. Now, 16 years after the collapse of the Soviet Union, its main effect is to weed out religious believers, particularly Quakers and Jehovah's Witnesses.
As a Quaker from Pennsylvania and a lifelong pacifist, Gonaver objected to the California oath as an infringement of her rights of free speech and religious freedom. She offered to sign the pledge if she could attach a brief statement expressing her views, a practice allowed by other state institutions. But Cal State Fullerton rejected her statement and insisted that she sign the oath if she wanted the job.
Apparently this is not an isolated incident.
In February, another Cal State instructor, Quaker math teacher Marianne Kearney-Brown, was fired because she inserted the word "nonviolently" when she signed the oath. She was quickly rehired after her case attracted media attention.
It is hard to know how many would-be workers decline to sign the pledge over religious or political issues. Some object because they interpret the pledge as a commitment to take up arms. Others have trouble swearing an oath to something other than their God.
I don't know as much about this area of the law, but I find it hard to believe that this policy could survive a court challenge, particularly since (as the story notes) the Cal State system applies the oath requirement more stringently than is required. Other state agencies apparently allow individuals to qualify the oath or attach explanatory statements.