PORT-AU-PRINCE, Haiti (AP) — Leading opposition factions are alleging that Haiti’s presidentially appointed electoral council is stacking the deck in favor of President Michel Martelly, who has scheduled long-delayed legislative and municipal elections for October.

Parties complaining of exclusion and unfair advantages include the Unity party of former President Rene Preval and the Lavalas Family founded by former President Jean-Bertrand Aristide. They are among the major opposition groups that boycotted election talks earlier in the year and have refused to register with the Provisional Electoral Council, which they contend is rigged.