Soraya Sarhaddi Nelson

The first free presidential election in Egypt begins Wednesday.

Twelve candidates are running for the top spot vacated by Hosni Mubarak during last year's revolution. But none is expected to get an outright majority, and if that proves true, then a runoff will take place next month between the two leading vote-getters.

Many Egyptian voters say they are excited about the presidential election, which the country's ruling generals promise will be fair.

In Egypt's historic presidential race, opinion polls place the oldest candidate with the most political experience far ahead of his 11 rivals.

Many opponents try to portray Amr Moussa as a holdover from the hated regime of Hosni Mubarak. Moussa was Egypt's foreign minister under Mubarak and later the secretary-general of the Arab League.

Yet many voters believe he is the only candidate who can end the country's growing insecurity and economic problems.

The two top Islamists running in Egypt's first real presidential race share a common history.

Abdel Moneim Aboul Fotouh, a physician, is a former senior leader in the Muslim Brotherhood whose moderate stance has made him popular not only with Islamists, but with liberal and secular Egyptians.

Mohammed Morsi, an engineer, heads the Brotherhood's political party, which holds nearly half the seats in parliament.

Yet despite their common political background, the two men are bitter rivals.

After months of anticipation, and just a few weeks before the voting, Egypt now has a list of 13 officially approved presidential candidates.

Amr Moussa, the former secretary-general of the Arab League, is one of the 13, and he is ahead in most opinion surveys in advance of the May 23-24 election.

And in a reversal, Egyptian election officials agreed Thursday to let one of Hosni Mubarak's former prime ministers run for president.

Egypt's election commission is expected to announce the final list of candidates this week for next month's presidential elections. But which candidate will win is far from clear.

A recent Egyptian poll shows nearly 40 percent of voters have no idea who to support. Another 30 percent who had decided will be forced to select someone else because their preferred candidates were among the 10 barred by election officials recently.

As a result, Egyptian voters who were once excited about the prospect of their first free presidential election are growing frustrated.

Egyptian election officials upheld their ban of nearly half of the presidential candidates running in next month's contest. Among them are two leading Islamist candidates and the intelligence chief for former President Hosni Mubarak. The decision radically alters the race for a post that will shape Egypt's political landscape.

Minutes after official news outlets announced the election commission ruling, candidate Hazem Abu Ismail took to the airwaves to denounce it as a conspiracy.