Though the Group of Eight nations probably won't mention it in the official communique from its St Petersburg summit, the organisation faces an embarrassing 'Russia problem' that is only likely to grow worse.
'The leaders of western democracies have every reason to downplay this paradox, that they have an undemocratic Russia sitting at the head table and dictating the G8's agenda,' says Lilia Shevtsova, a leading analyst and senior associate at the Carnegie Centre in Moscow.
'They will certainly paper over their differences and make nice faces for the cameras, but this is a problem that is not going away.'
Ahead of yesterday's official opening of the summit an exchange between US President George W. Bush and his Russian counterpart Vladimir Putin highlighted steadily worsening ties between the two countries over the issue.
Mr Bush had declared that it was wrong to 'expect Russia to look like the United States', but pressed Mr Putin on issues like the role of an independent media and suggested that war-torn Iraq might be a model to follow.
Mr Putin jokingly replied: 'We certainly would not want to have the same kind of democracy as they have in Iraq, I will tell you quite honestly.'