Netanyahu worked on his speech while on the way to Washington . Official said Netanyahu sees speech as `` last chance '' to avert bad deal with Iran . The Israeli leader is expected to deliver a major address in Washington, D.C. at 9 a.m. ET Tuesday and will be joined by Secretary of State John Kerry for talks that are likely to focus heavily on Iran.
Netanyahu worked on his speech while on the way to Washington . Official said Netanyahu sees speech as `` last chance '' to avert bad deal with Iran . Netanyahu has called this trip `` historic ''