It is no brainer and is a common knowledge. When it comes to the Middle East, Israel makes all the decisions for the US. The US is a partner and a party to the conflict. It is best for Abbas not to rely on the US but forge a concenses with American Jewish leaders to help solve the problem. A good start will be at the Israeli/American shop, Brookings Institute.
UN chief condemns Palestinian toddler killing, urges calm (Reuters)
from the article: U.S. withdraws UN Annapolis resolution after Israel objects