The current government is looking for a bigger "yes" majority and larger turnout to win undisputed legitimacy and perhaps a popular mandate for military chief Gen. Abdel-Fattah el-Sissi, to run for president this year. El-Sissi has yet to say outright whether he plans to seek the nation's highest office, but his candidacy appears increasingly likely every day.
"The constitution is not perfect," said Ameena Abdel-Salam after she cast her ballot in Cairo's upscale Zamalek district. "But we need to move forward and we can fix it later."
Illustrating the high stakes, the government and the overwhelmingly pro-military media have portrayed the balloting as the key to the nation's security and stability. Hundreds of thousands of fliers, posters, banners and billboards urged Egyptians to vote "yes." People have been arrested for posters and campaigns calling for a "no" vote.
Long lines of voters began to form nearly two hours before polling stations opened in some Cairo districts, including Imbaba, where the blast promptly whipped up anti-Brotherhood sentiment with chants and shouting against the Islamist group.
Women and the elderly were heavily represented. The mood was generally upbeat, hostile toward the Brotherhood and hopeful that the charter would bring better days. In one women-only line in Cairo, voters sang the national anthem together as well as patriotic songs dating back to the 1960s. "El-Sissi is my president," they chanted as some jubilantly ululated.
Manal Hussein, who comes from a village below the Giza Pyramids plateau west of Cairo, wore a dress in the red, black and white colors of the national flag. Her daughter wore an Islamic veil in the same colors.
"This vote brings to an end the era of the Brotherhood, who divided us and turned family members against each other," Hussein said.
Outside a nearby polling station, 67-year-old Alaa al-Nabi Mohammed echoed a similar sentiment — that Egyptians have consigned Morsi and the Brotherhood's yearlong rule to the past.
"I am here to send a message to the world and to those who hate Egypt that we want to live and get our country back on its feet," he said.
The balloting is the first electoral test for the popularly backed coup that ousted Morsi and his Brotherhood. A comfortable "yes" vote and a respectable turnout would bestow legitimacy on the cascade of events that followed the coup while undermining the Islamists' argument that Morsi remains the nation's elected president.
The Brotherhood, now branded as a terrorist group, has called for a boycott of the vote. Morsi himself is facing three separate trials on charges that carry the death penalty.
The unprecedented security surrounding the vote follows months of violence that authorities have blamed on Islamic militants. In the six months since Morsi's ouster, there has been an assassination attempt on the interior minister and deadly attacks on key security officers, soldiers, policemen and provincial security and military intelligence headquarters.
"You must come out and vote to prove to those behind the dark terrorism that you are not afraid," Interim President Adly Mansour told reporters after he cast his ballot.
Morsi's supporters have promised massive demonstrations and have labeled the draft charter a "constitution of blood," but protests in several parts of the country drew only several hundred supporters.
The government has warned it would deal harshly with anyone interfering with the referendum.
Most of Egypt's minority Coptic Christians, who make up about 10 percent of the population, have backed the removal of Morsi and the charter in hopes of winning religious freedoms.
"Anyone who was raised in Egypt will choose this constitution," said Verta Nassif, a 70-year old Christian from Assuit, a stronghold of Islamists and home to a large Christian community south of Cairo.
There was a lone voice of dissent outside another polling station in Assiut.
"El-Sissi is a killer and his constitution is void," shouted a woman, who left the scene just before a security team arrived to look for her. At a nearby outdoor market, Hany Abdel-Hakeem was arguing with a vendor.
"I will not participate in anything I am not convinced of. And if I say anything against it, I will be arrested. Keeping silent is better."
El Deeb reported from Assiut, Egypt. Associated Press reporters Maggie Hyde and Mariam Rizk contributed to this report from Cairo.
- Live at the GOP convention: Donald Trump...
- Cruz: Not supporting candidate who wages...
- Rupert Murdoch vows Fox News without Ailes is...
- NBA moving All-Star Game out of Charlotte,...
- Kaine emerges as a favorite in Clinton's VP...
- Hundreds of demonstrators gather on...
- Fox needs to find a successor to man who...
- Brazil nabs 10 IS backers in Olympics...
- Utah delegates finally stand and cheer... 93
- Obama rejects Trump depiction of US in... 41
- The day after: Lee defends Cruz at GOP... 32
- Police give all-clear in Munich... 31
- Dems' division, emails roil party on... 28
- In wake of email hack, Democratic chair... 23
- Daughter Ivanka Trump raises issues... 21
- NBA moving All-Star Game out of... 20