As we watched Sarah Palin on TV the last couple of days, we kept wondering what on earth John McCain was thinking.

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If he seriously thought this first-term governor — with less than two years in office — was qualified to be president, if necessary, at such a dangerous time, it raises profound questions about his judgment. If the choice was, as we suspect, a tactical move, then it was shockingly irresponsible.

It was bad enough that Ms. Palin's performance in the first televised interviews she has done since she joined the Republican ticket was so visibly scripted and lacking in awareness.

What made it so much worse is the strategy for which the Republicans have made Ms. Palin the frontwoman: win the White House not on ideas, but by denigrating experience, judgment and qualifications.

The idea that Americans want leaders who have none of those things — who are so blindly certain of what Ms. Palin calls "the mission" that they won't even pause for reflection — shows a contempt for voters and raises frightening questions about how Mr. McCain and Ms. Palin plan to run this country.

One of the many bizarre moments in the questioning by ABC News's Charles Gibson was when Ms. Palin, the governor of Alaska, excused her lack of international experience by sneering that Americans don't want "somebody's big fat résumé maybe that shows decades and decades in that Washington establishment where, yes, they've had opportunities to meet heads of state."

We know we were all supposed to think of Joe Biden. But it sure sounded like a good description of Mr. McCain. Those decades of experience earned the Arizona senator the admiration of people in both parties. They are why he was our preferred candidate in the Republican primaries.

The interviews made clear why Americans should worry about Ms. Palin's thin résumé and lack of experience. Consider her befuddlement when Mr. Gibson referred to President Bush's "doctrine" and her remark about having insight into Russia because she can see it from her state.

But that is not what troubled us most about her remarks — and, remember, if they were scripted, that just means that they reflect Mr. McCain's views all the more closely. Rather, it was the sense that thoughtfulness, knowledge and experience are handicaps for a president in a world populated by Al Qaeda terrorists, a rising China, epidemics of AIDS, poverty and fratricidal war in the developing world and deep economic distress at home.

Ms. Palin talked repeatedly about never blinking. When Mr. McCain asked her to run for vice president? "You have to be wired in a way of being so committed to the mission," she said, that "you can't blink."

Fighting terrorism? "We must do whatever it takes, and we must not blink, Charlie, in making those tough decisions of where we go and even who we target."

Her answers about why she had told her church that President Bush's failed policy in Iraq was "God's plan" did nothing to dispel our concerns about her confusion between faith and policy. Her claim that she was quoting a completely unrelated comment by Lincoln was absurd.

This nation has suffered through eight years of an ill-prepared and unblinkingly obstinate president. One who didn't pause to think before he started a disastrous war of choice in Iraq. One who blithely looked the other way as the Taliban and Al Qaeda regrouped in Afghanistan. One who obstinately cut taxes and undercut all efforts at regulation, unleashing today's profound economic crisis.

In a dangerous world, Americans need a president who knows that real strength requires serious thought and preparation. (NYT Editorial)