G7 leaders will discuss on Wednesday the security risks posed by AI and social media on the last day of a summit dominated by Donald Trump, before host French President Emmanuel Macron dines with his US counterpart at the Palace of Versailles. The three-day summit of the leaders of Canada, France, Germany, Italy, Japan, Britain and the United States has focused intensely on Trump's deal to end the war with Iran and efforts to pressure Russia into brokering peace with Ukraine.