Mohammed Mursi has won the presidential elections, claim the Muslim Brotherhood and its political machinery, the Freedom and Justice Party. Final official results are not expected till Thursday, but Ahmed Shafiq's campaign staff did not release any figures that would challenge the count published by newspaper Al-Masry Al-Youm, which gives Mursi a narrow victory with 51.13% of the vote.

Crowds of Mursi's supporters are already gathering at the Tahrir Square in Cairo, says Al Jazeera, and Mursi's first celebratory speech promised the new president will work for a "civil, democratic, constitutional and modern state".

But it's going to be a bitter triumph for the Brotherhood. What did Mursi actually win? He takes over an institution with undefined powers, the Islamist-dominated parliament dissolved, and the army seemingly free to rewrite the rules of the game. The military cemented its soft coup on Sunday night with a constitutional declaration, partially translated by Egypt's Al Ahram paper. Final document is expected later this week but here are the main bits:

• Legislative power is formally reserved for the Supreme Council of the Armed Forces (SCAF), with no parliamentary elections until a new constitution is adopted
• Constituent Assembly appointed by the outgoing parliament will continue its work, but the military can reject constitutional proposals which "conflict with the revolution's goals"
• SCAF has the exclusive power to appoint military commanders and run its affairs
• SCAF controls the state budget

This is effectively a military regime, with highly questionable legitimacy. The second act begins.

Photo by Getty Images.

See also:

• Egypt Presidential Candidates in 2012 Elections
• Freedom and Justice Party: Profile
• Profile of the Supreme Council of the Armed Forces (SCAF)