What kind of negotiator gives the other side everything that it wants with the hope of eventually getting something in return?It’s a question that even some of President Trump’s own allies are asking after his administration signed a landmark deal to develop a civilian nuclear program in Saudi Arabia using American technology. The deal’s opponents, in the United States and Israel, worry that the new pact might ultimately allow for uranium enrichment—and if so, that Trump just gave Crown Prince Mohammed bin Salman the tools he needs to build a bomb. What did the U.S. require in return? Pretty much…