The president's warmongering remarks on the Iranian threat suggest he is psychotic. Really.

Forget impeachment.

Liberals, put it behind you. George W. Bush and Dick Cheney shouldn't be treated like criminals who deserve punishment. They should be treated like psychotics who need treatment.

Because they've clearly gone mad. Exhibit A: We're in the middle of a disastrous war in Iraq, the military and political situation in Afghanistan is steadily worsening, and the administration's interrogation and detention tactics have inflamed anti-Americanism and fueled extremist movements around the globe. Sane people, confronting such a situation, do their best to tamp down tensions, rebuild shattered alliances, find common ground with hostile parties and give our military a little breathing space. But crazy people? They look around and decide it's a great time to start another war.

That would be with Iran, and you'd have to be deaf not to hear the war drums. Last week, Bush remarked that "if you're interested in avoiding World War III . . . you ought to be interested in preventing [Iran] from having the knowledge necessary to make a nuclear weapon." On Sunday, Cheney warned of "the Iranian regime's efforts to destabilize the Middle East and to gain hegemonic power . . . [we] cannot stand by as a terror-supporting state fulfills its most aggressive ambitions." On Tuesday, Bush insisted on the need "to defend Europe against the emerging Iranian threat."

Huh? Iran is now a major threat to Europe? The Iranians are going to launch a nuclear missile (that they don't yet possess) against Europe (for reasons unknown because, as far as we know, they're not mad at anyone in Europe)? This is lunacy in action.

Writing in Newsweek on Oct. 20, Fareed Zakaria, a solid centrist and former editor of Foreign Affairs, put it best. Citing Bush's invocation of "the specter of World War III if Iran gained even the knowledge needed to make a nuclear weapon," Zakaria concluded that "the American discussion about Iran has lost all connection to reality. . . . Iran has an economy the size of Finland's. . . . It has not invaded a country since the late 18th century. The United States has a GDP that is 68 times larger and defense expenditures that are 110 times greater. Israel and every Arab country (except Syria and Iraq) are . . . allied against Iran. And yet we are to believe that Tehran is about to overturn the international system and replace it with an Islamo-fascist order? What planet are we on?"

Planet Cheney.

Zakaria may be misinterpreting the president's remark about World War III though. He saw it as a dangerously loopy Bush prediction about the future behavior of a nuclear Iran -- the idea being, presumably, that possessing "the knowledge" to make a nuclear weapon would so empower Iran's repressive leaders that they'll giddily rush out and start World War III.

But you could read Bush's remark as a madman's threat rather than a madman's prediction -- as a warning to recalcitrant states, from Germany to Russia, that don't seem to share his crazed obsession with Iran. The message: Fall into line with administration policy toward Iran or you can count on the U.S.A. to try to start World War III on its own. And when it comes to sparking global conflagration, a U.S. attack on Iran might be just the thing. Yee haw!

You'd better believe these guys would do it too. Why not? They have nothing to lose -- they're out of office in 15 months anyway. Après Bush-Cheney, le déluge! (Have fun, Hillary.)

But all this creates a conundrum. What's a constitutional democracy to do when the president and vice president lose their marbles?

The U.S. is full of ordinary people with serious forms of mental illness -- delusional people with violent fantasies who think they're the president, or who think they get instructions from the CIA through their dental fillings.

The problem with Bush is that he is the president -- and he gives instructions to the CIA and military, without having to go through his dental fillings.

Impeachment's not the solution to psychosis, no matter how flagrant. But despite their impressive foresight in other areas, the framers unaccountably neglected to include an involuntary civil commitment procedure in the Constitution.

Still, don't lose hope. By enlisting the aid of mental health professionals and the court system, Congress can act to remedy that constitutional oversight. The goal: Get Bush and Cheney committed to an appropriate inpatient facility, where they can get the treatment they so desperately need. In Washington, the appropriate statutory law is already in place: If a "court or jury finds that [a] person is mentally ill and . . . is likely to injure himself or other persons if allowed to remain at liberty, the court may order his hospitalization."

I'll even serve on the jury. When it comes to averting World War III, it's really the least I can do.