The Egyptian leader's failings
Morsy, a U.S.-educated religious conservative, was elected president in June 2012. But his approval ratings have plummeted.
His government has failed to keep order as the economy has tanked and crime has soared, including open sexual assaults on women in Egypt's streets. Chaos has driven away many tourists and investors.
That has disaffected many among Egypt's poor and middle classes, said Fawaz Gerges, director of the Middle East Center at the London School of Economics.
"The millions of Egyptians who cheered for Morsy are saying he must go," Gerges said.
He called Morsy "incompetent" but said he doubted the military would depose him, adding that that would drive Egypt into an even deeper crisis.