U.S. President Donald Trump said on Saturday he had spoken with Israeli Prime Minister Benjamin Netanyahu about a possible mutual defense treaty between the two nations, a move that could bolster Netanyahu's re-election bid just days before Israelis go to the polls.

"I had a call today with Prime Minister Netanyahu to discuss the possibility of moving forward with a Mutual Defense Treaty, between the United States and Israel, that would further anchor the tremendous alliance between our two countries," Trump said on Twitter.

He added that he looked forward to continuing those discussions later this month on the sidelines of the United Nations General Assembly session in New York.