Congress had initially approved the Palestinian funding in budget years 2015 and 2016, but at least two GOP lawmakers — Ed Royce of California, the chairman of the House Foreign Affairs Committee, and Kay Granger of Texas, who sits on the House Appropriations Committee — had placed holds on it over moves the Palestinian Authority had taken to seek membership in international organizations. Congressional holds are generally respected by the executive branch but are not legally binding after funds have been allocated.
The Obama administration had for some time been pressing for the release of the money for the Palestinian Authority, which comes from the U.S. Agency for International Development and is to be used for humanitarian aid in the West Bank and Gaza, to support political and security reforms as well as help prepare for good governance and the rule of law in a future Palestinian state, according to the notification sent to Congress.
http://www.nytimes.com/aponline/2017/01/23/us/politics/ap-us-united-states-palestinians.html