Conservative  Tending to favor the preservation of the existing order and to regard proposals for change with distrust.
Liberal  Having, expressing, or following social and political views or policies that favor non-revolutionary progress and reform; views or policies that favor the freedom of individuals to act or express themselves in a manner of their own choosing; tending to give freely; generous.
Progressive Moving forward; ongoing; advancing; Promoting or favoring political reform.
The Constitution of the United States  The system of fundamental laws and principles that prescribes the nature, functions and limits of government; adopted in 1787 and put into effect in 1789.
The Bill of Rights  The first ten amendments to the Constitution of the United States.
The Pledge of Allegiance  I pledge allegiance to the flag of the United States of America, and to the republic for which it stands, one nation indivisible, with liberty and justice for all.
Above is the version of the Pledge of Allegiance to the Flag of the United States of America first approved by the Congress in 1942. It evokes feelings of patriotism and unity, and brings together the vastly different cultures, ethnicities, languages and backgrounds that form the common experience called America. It reaffirms our commitment to the freedoms guaranteed in our Constitution, and reflects the foundation of that amazing document: that diversity is a blessing which only strengthens our nation. This is especially true concerning religion, which the Framers recognized as uniquely divisive, causing them to set forth that "Congress shall make no law respecting an establishment of religion. "We have done well since those first ten words of the Bill of Rights (i.e., the "Establishment Clause") were written in 1789, and generally held true to that principle. Yet, in 1954 - fueled by the Cold War and blinded by McCarthyism - Congress violated its oath. After sixty-two secular years, the Pledge - first introduced by a private magazine in 1892 - was changed. Our elected officials felt it necessary to inject religion into the Pledge, and "under God" was interlarded into that promise which had previously embraced all Americans.
source:  http://www.restorethepledge.com/