PA leader set to meet Egyptian president, Hamas chief Haniyeh and other faction heads in latest bid to patch up rift

While Hamas has accepted Mahmoud Abbas's invitation, PIJ says it cannot participate as long as the PA holds some of its members

Palestinian factions have been at odds since Hams won 2006 elections, which were never recognized by the international community, and later ousted Fatah from Gaza Strip

Ahead of plans to hold first national legislative elections in 15 years, many observers remain skeptical that the vote will take place

Deal reached at Cairo summit between 14 factions; Palestinians are skeptical that the vote will be held at all, as election promises have fallen through before

Hamas agrees to support move although several previous attempts to unite rival factions and hold a vote have failed over the years; observers are skeptical this time too

Mahmoud al-Zahar tells Iranian TV that group's rivals in Ramallah have 'tied their fate to Israel,' bashes security coordination between PA and Jewish state