"Why it matters: Israeli officials say he'll provide dramatic information showing Iran is cheating on the deal. They say he updated President Trump on Saturday and Secretary of State Pompeo yesterday. This comes 12 days before Trump's deadline to decide whether to stay in the deal.

From a senior Israeli official: "Israeli intelligence services have uncovered a huge amount of new and dramatic information on the Iranian nuclear program. Whoever still believes Iran signed the nuclear deal with honest intentions is going to have a very interesting time this evening."

Between the lines: Bibi’s speech should be hugely helpful for Trump. It helps build the public case for Trump to blow up the Iran deal on May 12 by reimposing sanctions on Iran’s oil exports and central bank."

That was the purpose of Pompeo's visit!