Egyptians should finally find out on Sunday who will be their first new president in the post-Mubarak era, a week after the run-off election.
In Cairo’s Tahrir Square the mood was festive as supporters of the Muslim Brotherhood’s Mohamed Morsi rallied into the night.
He is widely tipped to win, but the ruling military council has stripped the presidency of many powers.
“The protest must continue until it achieves all of the demands of the revolution. The next president has no authority, so how would he rule? He should come into office with complete powers,” said one Morsi supporter.
To counter the Brotherhood’s support, several thousand rallied in a middle-class Cairo suburb to declare support for the army.
A victory for Ahmed Shafiq – ex military commander and Mubarak ally – would be seen by millions as a blow to the Arab spring revolution.
The army has promised civilian rule. The result is due to be announced at 3pm local time.