CAIRO - A top aide to Egypt's President Mohamed Morsi, who quit when the leader issued a decree expanding his powers, has joined the country's biggest opposition movement, a senior opposition figure said on Friday.
Samir Morkos was Morsi's adviser on the transition to democracy and the only Christian in the Islamist leader's team.
He is one of at least two presidential advisers to have stepped down since Morsi issued the decree on Nov. 22 that made his decisions immune to legal challenge.
The president's opponents see the move as a power grab that threatens Egypt's nascent democracy.
Morkos only learned the details of the decree when it was read out on state television, he told the London-based Asharq al-Awsat newspaper this week.
Without waiting for Morsi to approve his resignation, Morkos joined the National Salvation Front "and is now sitting beside me in a meeting," opposition leader Ahmed Saed told Reuters.