Apart from Fatah and Hamas, notable slates include factions backed by convicted terrorist Marwan Barghouti, exiled Abbas rival Dahlan

Observers initially scoffed at PA President Abbas's election decree as a ploy -- but intentionally or not, it has paved the way for the most serious challenge to his rule in years

COGAT head Kamil Abu Rukun says he'll recommend 'stopping everything,' also opposes allowing ballots to be cast in East Jerusalem, a major sticking point for Palestinians

Argaman reportedly also raised ICC probe into alleged war crimes, to which PA president responded: 'You and I can share a prison cell'

Former PA prime minister Salam Fayyad registers his own list in planned election, which is scheduled for May 22; registration closes at midnight