With Mr. Saleh's ouster as their chief demand, the protesters withstood bloody attacks from government forces, rainstorms and internal fighting.
Internal fighting over the structure of the party may have led to poor oversight in hiring decisions, some observers said.
Clinton Administration officials and Western diplomats said that the Khmer Rouge appeared to be near collapse as a result of mass defections and internal fighting.
Mr. Maduro did not specify what statements Mr. Duddy would be asked to explain, but there has been recent criticism from the White House over Venezuela's possible role in Colombia's internal fighting.
The Fatah-Hamas friction boiled over into street fighting in Gaza on Sunday and Monday, leaving 10 Palestinians dead and more than 100 wounded in some of the worst internal fighting in recent years.
Internal fighting — particularly between Islamic Sate and Nusra members — has turned off some prospective recruits, is breeding disillusion among fighter ranks, and has drawn the condemnation of a number of Islamist scholars.
"The internal fighting within the SLFA is not helping because when they fight we suffer.
If the Americans leave, the internal fighting will begin".
The army collapsed, and it has only been weakened by internal fighting since.
Bereft of his leadership the PAC fell into internal fighting, assassinations and corruption.
