The UN statehood bid comes on the heels of a two-year statebuilding initiative launched by PA Prime Minister Salaam Fayyad, a former World Bank official. While Mr. Fayyad is widely trusted by the US and Europe, which have poured in foreign aid for his reform projects, he is viewed by Hamas as a traitor and a "Western tool" to implement America's strategies in the Palestinian territory.
But the disagreement goes beyond personalities; Hamas has been at odds with Fayyad's Fatah party four four years. After winning a majority in 2006 Palestinian elections, the Islamist movement violently ousted its secular rival from the Gaza Strip the following year, putting an indefinite end to the tenuous Hamas-Fatah unity government.
Hamas and Fatah have also failed so far to implement an Egyptian-brokered reconciliation process the two sides agreed to in April because Abbas wants to keep Fayyad as the head of the government, while Hamas wants to keep him away from Palestinian politics.
"It would be a victory for Fayyad and Abbas if Hamas joins the bid," says Atef Abu Saif, a professor of political science in Gaza. "If Hamas supports the attempt, it will have later to unwillingly accept Fayyad as a prime minister for the expected unity government."
Hamas leaders are divided over whether to support PA President Mahmoud Abbas's plan to approach the UN to gain recognition of Palestinian state based on the pre-1967 borders.
The move goes against Hamas charter, which calls for having an independent state on all of the Palestinian soil, including Israel. It also calls for the destruction of the Jewish state.