Sarah Palin is the perfect exclamation point to the Bush years.

We’ve lived through nearly two terms of an administration that believed it could create its own reality:

“Deficits don’t matter.” “Brownie, you’re doing a heckuva job.” “Those weapons of mass destruction must be somewhere.”

Now comes Ms. Palin, a smiling, bubbly vice-presidential candidate who travels in an alternate language universe. For Ms. Palin, such things as context, syntax and the proximity of answers to questions have no meaning.

In her closing remarks at the vice-presidential debate Thursday night, Ms. Palin referred earnestly, if loosely, to a quote from Ronald Reagan. He had warned that if Americans weren’t vigilant in protecting their freedom, they would find themselves spending their “sunset years telling our children and our children’s children what it was like in America when men were free.”

What Ms. Palin didn’t say was that the menace to freedom that Reagan was talking about was Medicare. As the historian Robert Dallek has pointed out, Reagan “saw Medicare as the advance wave of socialism, which would ‘invade every area of freedom in this country.’ ”