At the same time as he prods the stubborn mule that is China, however, Mr Obama is also struggling to curb the angry stallion that is Congress. Anti-Iranian sentiment on Capitol Hill was already inflamed by the Holocaust-denying rhetoric of President Mahmoud Ahmadinejad but has reached fever-pitch since the regime’s clampdown since June on the pro-democracy green movement.
Democrats and Republicans alike are champing to tighten America’s own sanctions on Iran. The White House has been pleading for time—first to give engagement a chance and lately to avoid complicating efforts in the Security Council. Now the Hill’s patience has run out.
Although the White House denies that it is out of sync with Congress, Kenneth Katzman of the Congressional Research Service said this week that Congress was in a “ferment” to find “every which way” to squeeze the Iranians. The pressure is bipartisan: sponsors of sanctions resolutions include John McCain, a Republican senator, and Howard Berman, a House Democrat. One pair of bills would punish all firms, including foreign ones, that sell petrol or refining equipment to Iran (Iran is short of refining capacity). Other proposals range from targeting individuals involved in human-rights abuses to making regime change official policy.
Blunt instruments like this could shatter Mr Obama’s careful efforts to corral foreign allies and show Iranians that America is worried about their regime’s nuclear delinquencies, not hostile to Iran itself. But Mr Obama faces a tricky calculation. Some State Department advisers tell him that too much pressure will provoke Iran to retaliate in Afghanistan (which Mr Ahmadinejad visited this week), with troubling consequences for the war on which the fate of his presidency may ultimately hang. But even friendly pollsters such as Stanley Greenberg and James Carville are picking up signs that the president is becoming vulnerable on national-security issues. Sarah Palin has helpfully urged him to “toughen up” and declare war on Iran.
Karim Sadjadpour of the Carnegie Endowment for International Peace has been dusting down the article George Kennan wrote from Moscow under the pseudonym X in 1947, calling for “patient but firm and vigilant containment” of the Soviet Union. One unintended consequence of Mr Obama’s extended hand was to aid the rise in Iran of a resilient democracy movement. Better now to encourage the opposition and wait for the regime to implode, says Mr Sadjadpour (he doesn’t expect to have to wait 40 years), than to concentrate only on the centrifuges spinning in Natanz. Mr Obama might think so, too—if only he could live with the idea of Iran going nuclear on his watch.















