The world does not get a vote in the US presidential election. Never mind, politicians across the globe are lining up regardless behind Barack Obama. It is not just the usual suspects – soggy Europeans who abhor the culture wars waged by US conservatives. The Republicans are trailing in places where they have traditionally had a strong edge on the Democrats.

The tone was set during David Cameron’s visit to Washington. Feted at the White House, Britain’s Conservative prime minister all but endorsed Mr Obama’s claim to a second term. Thumbing his nose at the Tory party’s American cousins he declined to meet Republican leaders. Mr Cameron’s government is legislating in favour of gay marriage. A conversation with Rick Santorum might have been a little strained.

Centre-right parties hold office just about everywhere in Europe. Yet it is a struggle to find leaders who would admit, even privately, to be crossing their fingers for Mitt Romney. Mention Mr Santorum or Newt Gingrich and they wince.