BIARRITZ, France — G-7 leaders are wrapping up a summit dominated by tensions over U.S. trade policies and a surprise visit by Iran’s top diplomat.U.S. President Donald Trump and summit host French President Emmanuel Macron will finish off the three-day summit with a joint news conference Monday.But first the leaders of the Group of Seven rich democracies — the U.S., France, Britain, Germany, Japan, Canada and Italy — are holding a string of meetings on climate change, how digitalization is transforming the world and other issues.The troubled world economy is overshadowing the meetings in the French Atlantic resort of Biarritz.Macron also took a big gamble by inviting the Iranian foreign minister to Biarritz, hoping to secure a breakthrough in global tensions over Iran’s nuclear program.The Associated Press read more