By Michel RoseEVIAN-LES-BAINS, France, June 18 (Reuters) - When Donald Trump, flanked by the French president, signed the Iran memorandum in the opulent Palace of Versailles, the optics were vintage Emmanuel Macron: the full weight of French history, glamour and pomp deployed to win over a difficult counterpart.

Donald Trump said Tuesday he had accepted President Emmanuel Macron's offer of dinner this week at Versailles as the palace of the Sun King Louis XIV is "the real deal".

Donald Trump was welcomed to the Palace of Versailles on Wednesday evening for a private reception and dinner hosted by French President Emmanuel Macron following the conclusion…