THE incumbent president claims to have won a walloping 63% of the vote in the disputed presidential election of June 12th. He is still backed by Ayatollah Ali Khamenei, the Islamic Republic’s supreme leader, its security forces, its state-run media, and a parliament dominated by fellow conservatives. Yet, after his inauguration on August 5th, Mahmoud Ahmadinejad has little to savour as he settles in for a second four-year term. His position is far from secure. The crisis is still acute.

The difficulties he faces were symbolically exposed at a confirmation ceremony held on August 3rd to launch his second term. In a pointed break with protocol, many senior officials, including two former presidents, found themselves too busy to attend. So was the family of Ayatollah Ruhollah Khomeini, the leader of the revolution of 1979 and the Islamic Republic’s founding father, which by tradition is prominent at such events. And when Mr Ahmadinejad tried to repeat the unprecedented show of fealty he performed at the last such ceremony in 2005 by kissing Mr Khamenei’s hand, this time the supreme leader flinched, prompting a clumsy kiss of his shoulder instead.

Hardly had the ceremony closed before street protests erupted anew across Tehran. Bonfires were set alight, slogans chanted, horns tooted and pitched battles with police ran far into the night, when cries of Allahu Akbar (God is Great!) echoed as loud as ever from rooftops, as they have done nightly since the election that millions of Iranians still believe was stolen. Though far smaller in numbers than the mass demonstrations in the poll’s immediate aftermath, the protests have continued sporadically, despite campaigns of sweeping arrests and intimidation, as well as increasingly Orwellian efforts to brand dissidents as agents of an enemy plot.

The most recent effort to blame foreigners has taken a more ominously farcical twist as a show trial of alleged conspirators was aired on television. Promising to be a prolonged spectacle, it was launched with a parade of scores of prominent reformists in prison garb. After a lengthy indictment was read out, repentant ringleaders were shown making their confessions.

Alleging links between a range of Western (especially American) foundations and Iranian conspirators, including three reformist parties, the prosecutor suggested that vigilant security forces had foiled a “velvet” coup modelled on successful uprisings in Serbia, Georgia and elsewhere. His accusations swept up not only an array of notable academics with ties to foreign universities, but whole categories of activist groups, including those seeking to protect the rights of women, ethnic minorities, labour unions and students.

The carefully edited confessions appeared to implicate Western media and intelligence agencies along with the defeated reformist presidential candidates and their backers in Iran’s establishment. Looking drawn and vacant before the camera, Muhammad-Ali Abtahi, a cherubic, mid-ranking cleric who served for several years as a vice-president in the reformist administrations (1997-2005) of Muhammad Khatami, insinuated that Akbar Hashemi Rafsanjani, another former president and long a linchpin of Iran’s power structure, had joined the conspirators out of a wish to avenge his defeat by Mr Ahmadinejad in the 2005 election. Appearing alongside Mr Abtahi, Muhammad Atrianfar, a newspaper editor and known protégé of Mr Rafsanjani, chided the former president for his errors and asked for forgiveness from the supreme leader (“whose wisdom and alert leadership is guaranteed by nightly secrets between him and God”).

This cloud of conspiratorial innuendo had several purposes. One was to flesh out a narrative to explain the post-electoral unrest and to excuse the harshness of a crackdown that has cost at least 30 lives and sent hundreds, perhaps thousands, of Iranians to prison. Another, say dissidents, is to pave the way for a more direct attack on the most senior opposition figures. Conservative mouthpieces in parliament and the press have amplified calls for trials of the accused ringleaders, including Messrs Khatami and Rafsanjani, as well as the leading defeated candidate, Mir Hosein Mousavi. Were this to happen, it would mark the Islamic Republic’s abandonment even of its filtered pluralism and shift it finally towards a unipolar political system.

Yet far from crumbling in fear, the opposition has responded to the confessions with renewed outrage and calls for more protests. In a letter posted on his website, Mr Mousavi said the trial displayed the moral collapse of those directing it, promising that one day they would themselves be tried for what he called “Iran’s tragedy”. Mr Abtahi’s wife and daughter, ignoring warnings to remain silent, asserted that his confession had been forced.