The only power the US has at the UN is the ability to veto anti-Israel resolutions in the Security Council (see Negroponte Doctrine).
In follow-up to my previous post, would just like to address this a little more. The US does have more influence than you let on. The US has been quite obstructionist in Palestine's attempts to gain international recognition.
On 22 November 1974, United Nations General Assembly Resolution 3236 recognised the right of the Palestinian people to self-determination, national independence and sovereignty in Palestine. It also recognised the PLO as the sole legitimate representative of the Palestinian people, and accorded it observer status in the United Nations. The designation "Palestine" for the PLO was adopted by the United Nations in 1988 in acknowledgment of the Palestinian declaration of independence, but the proclaimed state still has no formal status within the system.
Shortly after the 1988 declaration, the State of Palestine was recognised by many developing states in Africa and Asia, and from communist and non-aligned states. At the time, however, the United States was using its Foreign Assistance Act and other measures to discourage other countries and international organisations from extending recognition. Although these measures were successful in many cases, the Arab League and the Organisation of the Islamic Conference (OIC) immediately published statements of recognition of, support for, and solidarity with Palestine, which was accepted as a member state in both forums.
In February 1989 at the United Nations Security Council, the PLO representative acknowledged that 94 states had recognised the new Palestinian state. It subsequently attempted to gain membership as a state in several agencies connected to the United Nations, but its efforts were thwarted by U.S. threats to withhold funding from any organisation that admitted Palestine. For example, in April of the same year, the PLO applied for membership as a state in the World Health Organization, an application that failed to produce a result after the U.S. informed the organisation that it would withdraw funding if Palestine were admitted. In May, a group of OIC members submitted to UNESCO an application for membership on behalf of Palestine, and listed a total of 91 states that had recognised the State of Palestine.
In June 1989, the PLO submitted to the government of Switzerland letters of accession to the Geneva Conventions of 1949. However, Switzerland, as the depositary state, determined that because the question of Palestinian statehood had not been settled within the international community, it was therefore incapable of determining whether the letter constituted a valid instrument of accession.
Due to the incertainty [sic] within the international community as to the existence or the non-existence of a State of Palestine and as long as the issue has not been settled in an appropriate framework, the Swiss Government, in its capacity as depositary of the Geneva Conventions and their additional Protocols, is not in a position to decide whether this communication can be considered as an instrument of accession in the sense of the relevant provisions of the Conventions and their additional Protocols.
Consequently, in November 1989, the Arab League proposed a General Assembly resolution to formally recognise the PLO as the government of an independent Palestinian state. The draft, however, was abandoned when the U.S. again threatened to cut off its financing for the United Nations should the vote go ahead. The Arab states agreed not to press the resolution, but demanded that the U.S. promise not to threaten the United Nations with financial sanctions again.
Many of the early statements of recognition of the State of Palestine were termed ambiguously. In addition, hesitation from others did not necessarily mean that these nations did not regard Palestine as a state. This has seemingly resulted in confusion regarding the number of states that have officially recognised the state declared in 1988. Numbers reported in the past are often conflicting, with figures as high as 130 being seen frequently. In July 2011, in an interview with Haaretz, Palestinian ambassador to the United Nations, Riyad Mansour claimed that 122 states had so far extended formal recognition. At the end of the month, the PLO published a paper on why the world's governments should recognise the State of Palestine and listed the 122 countries that had already done so. By the end of September the same year, Mansour claimed the figure had reached 139.
Someone made a point earlier about the US "controlling the UN" or something along those lines, and you dismissed it. Perhaps controlling is too harsh a word, but influencing is not, and the US has been instrumental in influencing a lack of UN-recognition for Palestine as a state, even as a majority of the nations on this planet have recognized it.