First Thing: Trump backs G7 statement on Iran deal as domestic criticism grows

Republicans question details of deal set to be signed later in the week as European leaders seek to join talks. Plus: can we refreeze the Arctic?Good morning.Donald Trump, facing severe criticism from some domestic supporters for conducting a war against Iran that has met hardly any of its original objectives, has backed a joint G7 leaders’ statement that welcomes his proposed peace deal.What is the domestic criticism of the deal? Many Senate Republicans said there were still unanswered questions and they needed thorough briefings before it was finalized. Senator Lindsey Graham, a close ally of Trump and a longtime hawk