This is an excerpt from Wikipedia---on the battle between the Originalists and the Living Consitution Folk:
Pros and cons
Arguments favoring the "Living Constitution Theory"
* American society has changed since the Constitution's ratification over two hundred years ago. In order for the Constitution to remain relevant and vital, it must grow and evolve with this society, "otherwise it will become brittle, and snap."
* The requirement that an amendment be ratified by the legislatures of three quarters of the several states inhibits the Constitution from growing and evolving with society.
* Because societal consensus sometimes exceeds that of the Legislature, it is possible for an amendment with broad support to fail.
* Alteration of the Constitution should not require broad cross-party support.
* Supporters of the Living Constitution say that perhaps the most contested clause is the explicit promise of "due process." Opponents of the Living Constitution seem to say they want to use the amendment process to do what judges do, that is decide what is due process. That would require amendments totaling thousands of pages dealing with all the nuances.
* Supporters point out there would have to be hundreds or thousands of constitutional amendments to cover thousands of different things that did not exist in 1787--like the Air Force, or the automobile or the internet or gay rights or partial birth abortions. Every year there would be a new batch of constitutional amendments to take account of the changes that happen so fast. The voting on all these amendments would involve multimillion dollar media campaigns financed by special interests. People with very little understanding of the law would make the decisions based on the last TV ad they saw (as happens in California initiative elections). Or the people can turn the job of handling the living Constitution over to experts who listen to the best legal talent and themselves are thoroughly examined and approved by the democratic process--the justices of the Supreme Court.
Arguments opposing "Living Constitution Theory"
* The Constitution recognises that society's needs and standards evolve (or at least change) over time, and that the Constitution may therefore need to grow, evolve or at least change in the due course of time. It therefore provides a mechanism for its amendment - but that mechanism resides in Article V, not Article III; the Supreme Court, by re-interpreting new clauses into the Constitution, takes ultra vires action, effectively short-circuiting the amendment process and encroaching on the rights the Congress and State legislatures to propose amendments, and the sovereignty of the people to ratify the same.
* If the Constitution should be interpreted in light of "the evolving standards of decency", why should the Supreme Court - nine unelected lawyers appointed to lifetime terms - have the final say over its interpretation? Is not the Congress, which faces election every two to six years, thereby more likely to be in touch with the current standards of decency, and therefore better placed to make such judgements?
* England, whose constitution the founders were intimately familiar with, having recently escaped from living under it, is "flexible", because it is unwritten; the British Constitution is thus "whatever Parliament says the Constitution says". The Founders rejected this approach, and instead opted for a written constitution which could only be amended by consent of the people - not by fiat of one of the branches of government.
* If the Constitution means whatever it is decreed to mean by a judge, then "The Constitution ... is a mere thing of wax in the hands of the judiciary which they may twist and shape into any form they please." -Thomas Jefferson)
* The Living Constitution asks the wrong question. Instead of asking "what does the law say to this case?" it asks, "What is the most desirable resolution of this case, and how can any impediments to the achievement of that result be evaded?" [1]
* The Living Constitution approach provides little or no check against judges gaining unfettered discretion to inject their personal values into constitutional jurisprudence. Upon hearing that Nixon had won, New Yorker film critic Pauline Kael declared, "I don't know how Richard Nixon could have won, I don't know anybody who voted for him"; there is a tendency inherent in humans to assume that our views are mainstream and reasonable, and thus - absent any clear guidelines to prevent it - there is a danger that a Judge may end up interposing their standard of decency, not society's. The Originalist Judge frequently renders verdicts which they don't like or agree with (see, e.g., Texas v. Johnson); the Living Constitution Judge - because they believes that "legal" and "right" are not distinguishable terms - never rules against their own preferences.
* How is the Court to determine what the standards of decency are at any given time? What should be the threshold or standard against which a statue is judged.
* The Living Constitution cannot answer the hugely important question: what happens if society's view is determined by the court to be diametrically opposed to an explicit constitutional guarantee? Since the Court cannot amend the Constitution, the Living Constitutionalist is faced with a dilemma: which should prevail - the text, or the Court's understanding of the standard of decency? Can the Supreme Court void not just a law, but a clause of the Constitution?
* The Living Constitution would render the meaning of the Constitution unknowable and thus arbitrary and capricious, the precise opposite of the Framers' intent in drafting a written constitution which provides checks against capricious and arbitrary government. "Is the death penalty unconstitutional? Not yet, but check back again in six months, and we'll see what society thinks".
* The Living Constitution interjects the Supreme Court into the moral and policymaking arenas, where it has no business being. The job of the Supreme Court is to determine what the law says, not what it ought to say - that job being reserved to the Congress. The job of the Supreme Court is to determine whether a law is or is not Constitutional, not whether it is or is not a good idea. Again, the Constitution reserves those tasks to the legislative and executive branches.
* The Living Constitution is at variance with the historical practises of American jurisprudence. The due process clause of the Fourteenth Amendment existed in 1870 and 1920, and what could be a great violation of equal protection than the denial of suffrage on the grounds of race or gender? The due process clause was never previously understood to be a "blank check" guaranteeing substantive rights, but rather a check on arbitrary or capricious government (a person can be constitutionally deprived of life, liberty and property, but only after due process of law has been followed), and hence the need for the Fifteenth and Sixteenth Amendments.
* If the Constitution is not to have a fixed meaning, and can thus be interpreted as a given Judge or Justice fancies, then every Judicial confirmation that reaches the Senate will become a battleground over the personal views of that Judge. Apropos, see also: Robert Bork, Janice Rogers Brown, Priscilla Owens, Nuclear Option.