At Townhall.com,
David Limbaugh gives a good explanation on the difference between
Conservatives and Liberals, basically on how each group views the U.S.
Constitution:

The Liberals.. 

They’re definitely all about the Fourth
Amendment protection against unreasonable searches and seizures — to
such an extreme that they would extend it to non-citizen enemy
combatants. They also surely fashion themselves as Fifth, Sixth,
Seventh and Eighth Amendment enthusiasts, with their due process,
witness confrontation, jury trial, double jeopardy, self-incrimination
and cruel-and-unusual punishment provisions.

But their support gets murkier when it comes to the First,
Second, Ninth and 10th Amendments. They revere the Establishment Clause
but are less enamored of the Free Exercise Clause. They consider
themselves free-speech watchdogs but love campus speech codes, the
Fairness Doctrine, campaign-finance reform laws and classroom
indoctrination. And I’ve never heard a liberal wax proudly about
federalism or the erosion of states’ rights that has accompanied its
dilution.

Conservatives, by contrast, not only champion the Bill of
Rights — the complete package — but also believe Americans owe our
unique liberties to the scheme of governmental power established in the
body of the Constitution.

We believe, as did the framers, that the structural
limitations on government, like the separation of powers and
federalism, are what make possible individual liberties. The pitting
against each other of competing levels and branches of government run
by imperfect men was designed to deter government from its natural
tendency toward absolutism.