Leaders of Iran’s opposition say they are determined to press on with legal challenges to the Presidential election that they claim was rigged.Although there are stringent restrictions on reporting in Iran it looks as though the mass anti-government protests of the last two weeks have been pretty much put down. One of the losing candidates, the reformer Mehdi Karroubi has postponed a day of mourning for those who died. The interior ministry has banned all kinds of assembly since the election. But that did not stop a wave of anger, unseen in Iran since the revolution 30 years ago. About 20 people have died in the unrest. The protests have exposed rifts in Iran’s ruling hierarchy – and prompted the Supreme Leader Ayatollah Ali Khamenei to become involved in the political arguments by backing the ultra-conservative election winner Mahmoud Ahmadinejad. Iran’s government has blamed outside influences for the trouble – in particular Britain and the US. The election loser, Mirhossein Mousavi wants the result annulled, but that has been ruled out by Iran’s Guardian Council.