In all the talk about the vice-presidential debate, there was an issue that did not get much attention but kept nagging at us: Sarah Palin’s description of the role and the responsibilities of the office for which she is running, vice president of the United States.

In Thursday night’s debate, Ms. Palin was asked about the vice president’s role in government. She said she agreed with Dick Cheney that “we have a lot of flexibility in there” under the Constitution. And she declared that she was “thankful that the Constitution would allow a bit more authority given to the vice president also, if that vice president so chose to exert it.”

It is hard to tell from Ms. Palin’s remarks whether she understands how profoundly Dick Cheney has reshaped the vice presidency  as part of a larger drive to free the executive branch from all checks and balances. Nor did she seem to understand how much damage that has done to American democracy.

Mr. Cheney has shown what can happen when a vice president  a position that is easy to lampoon and overlook  is given free rein by the president and does not care about trampling on the Constitution.