NY Post Editorial: ... Above all else, Menendez outlined what Obama and Secretary of State John Kerry repeatedly claim the deal’s critics lack: a credible alternative and “a pathway to a better deal.” The purpose of the agreement, Menendez reminds us, was “to dismantle all, or significant parts, of Iran’s illicit nuclear infrastructure.” Not to “shrink its infrastructure. Not limit it. But fully dismantle Iran’s nuclear weapons capability.” Yet this deal, he said, “failed to achieve the one thing it set out to achieve — it failed to stop Iran from becoming a nuclear-weapons state at a time of its choosing.” Instead, it actually “authorizes and supports the very road map Iran will need to arrive at its target.” Kerry, Menendez recalls, promised him Iran “will either dismantle” its Arak plutonium reactor “or we will destroy it.” Yet the deal leaves Arak fully functioning. The deal’s defenders quickly denounced Menendez as a “warmonger” — in line with Obama’s claim that the c...