The Democratic victories this month led to a surge of calls for the Administration to begin direct talks with Iran, in part to get its help in settling the conflict in Iraq. British Prime Minister Tony Blair broke ranks with President Bush after the election and declared that Iran should be offered “a clear strategic choice” that could include a “new partnership” with the West. But many in the White House and the Pentagon insist that getting tough with Iran is the only way to salvage Iraq. “It’s a classic case of ‘failure forward,’” a Pentagon consultant said. “They believe that by tipping over Iran they would recover their losses in Iraq—like doubling your bet. It would be an attempt to revive the concept of spreading democracy in the Middle East by creating one new model state.”

The view that there is a nexus between Iran and Iraq has been endorsed by Condoleezza Rice, who said last month that Iran “does need to understand that it is not going to improve its own situation by stirring instability in Iraq,” and by the President, who said, in August, that “Iran is backing armed groups in the hope of stopping democracy from taking hold” in Iraq. The government consultant told me, “More and more people see the weakening of Iran as the only way to save Iraq.”

The consultant added that, for some advocates of military action, “the goal in Iran is not regime change but a strike that will send a signal that America still can accomplish its goals. Even if it does not destroy Iran’s nuclear network, there are many who think that thirty-six hours of bombing is the only way to remind the Iranians of the very high cost of going forward with the bomb—and of supporting Moqtada al-Sadr and his pro-Iran element in Iraq.” (Sadr, who commands a Shiite militia, has religious ties to Iran.)

In the current issue of Foreign Policy, Joshua Muravchik, a prominent neoconservative, argued that the Administration had little choice. “Make no mistake: President Bush will need to bomb Iran’s nuclear facilities before leaving office,” he wrote. The President would be bitterly criticized for a preëmptive attack on Iran, Muravchik said, and so neoconservatives “need to pave the way intellectually now and be prepared to defend the action when it comes.”

The main Middle East expert on the Vice-President’s staff is David Wurmser, a neoconservative who was a strident advocate for the invasion of Iraq and the overthrow of Saddam Hussein. Like many in Washington, Wurmser “believes that, so far, there’s been no price tag on Iran for its nuclear efforts and for its continuing agitation and intervention inside Iraq,” the consultant said. But, unlike those in the Administration who are calling for limited strikes, Wurmser and others in Cheney’s office “want to end the regime,” the consultant said. “They argue that there can be no settlement of the Iraq war without regime change in Iran.”

The Administration’s planning for a military attack on Iran was made far more complicated earlier this fall by a highly classified draft assessment by the C.I.A. challenging the White House’s assumptions about how close Iran might be to building a nuclear bomb. The C.I.A. found no conclusive evidence, as yet, of a secret Iranian nuclear-weapons program running parallel to the civilian operations that Iran has declared to the International Atomic Energy Agency. (The C.I.A. declined to comment on this story.)

The C.I.A.’s analysis, which has been circulated to other agencies for comment, was based on technical intelligence collected by overhead satellites, and on other empirical evidence, such as measurements of the radioactivity of water samples and smoke plumes from factories and power plants. Additional data have been gathered, intelligence sources told me, by high-tech (and highly classified) radioactivity-detection devices that clandestine American and Israeli agents placed near suspected nuclear-weapons facilities inside Iran in the past year or so. No significant amounts of radioactivity were found.

A current senior intelligence official confirmed the existence of the C.I.A. analysis, and told me that the White House had been hostile to it. The White House’s dismissal of the C.I.A. findings on Iran is widely known in the intelligence community. Cheney and his aides discounted the assessment, the former senior intelligence official said. “They’re not looking for a smoking gun,” the official added, referring to specific intelligence about Iranian nuclear planning. “They’re looking for the degree of comfort level they think they need to accomplish the mission.” The Pentagon’s Defense Intelligence Agency also challenged the C.I.A.’s analysis. “The D.I.A. is fighting the agency’s conclusions, and disputing its approach,” the former senior intelligence official said. Bush and Cheney, he added, can try to prevent the C.I.A. assessment from being incorporated into a forthcoming National Intelligence Estimate on Iranian nuclear capabilities, “but they can’t stop the agency from putting it out for comment inside the intelligence community.” The C.I.A. assessment warned the White House that it would be a mistake to conclude that the failure to find a secret nuclear-weapons program in Iran merely meant that the Iranians had done a good job of hiding it. The former senior intelligence official noted that at the height of the Cold War the Soviets were equally skilled at deception and misdirection, yet the American intelligence community was readily able to unravel the details of their long-range-missile and nuclear-weapons programs. But some in the White House, including in Cheney’s office, had made just such an assumption—that “the lack of evidence means they must have it,” the former official said.