Israel was the source of classified information President Trump reportedly shared with top Russian officials last week, "a current and a former U.S. official familiar with how the U.S. obtained the information" told The New York Times. The officials told NYT that "at least some of the details" Trump shared regarding an ISIS-held plot came from the Israelis.
Why this matters: Trump is set to visit Israel — the closest U.S. ally in the Middle East — during his upcoming trip abroad. The claims that Trump passed classified information shared by Israel to Russia could be detrimental to the U.S./Israel relationship.
One big problem: This leaves the door open for Russia to share that information with its close ally Iran — one of Israel's biggest adversaries, as the NYT points out.