> For what it's worth, the US has also tried to work a two-state solution over the last 30 years with various degrees of vigor. That became much harder to accomplish when the Gaza Strip decided to elect Hamas to lead its government in 2006-07.
It became much harder when the Israeli hard Right murdered Yitzhak Rabin in 1995 and then took over the Israeli government with Netanyahu's election in 1996.
Both fairly explicitly in reaction against the idea of ever accepting a Palestinian State.