It’s a tableau no world leader — except perhaps President Donald Trump — wants to repeat. Convening in the Canadian Rockies for this week’s Group of 7 summit, presidents and prime ministers are hoping to avoid the acrimony that pervaded the last time this country played host to the world’s most exclusive club.

A Democratic senator introduced legislation to prevent President Donald Trump from using military force against Iran without Congress's authorization.

A Democratic senator introduced legislation on Monday to prevent U.S. President Donald Trump from using military force against Iran without Congress's authorization, as an escalating battle between Israel and Iran raised fears of broader conflict.

Iran and Israel continued on Sunday their aerial attacks, which began Friday with a series of Israeli strikes on Iran.

Also looming over the meeting are President Trump's inflammatory threats to make Canada the 51st state and take over Greenland.

President Donald Trump said the United will come down on Iran “at levels never seen before” if the Middle Eastern country attacks.

Netanyahu reveals Iran attempted to assassinate both him and Trump, discusses Israel's strikes against Iran's nuclear program, and explains the "imminent threat."

Israel’s attack on Iran was long in the making – the result of years of meticulous planning by Israel and days of high-stakes talks between Tel Aviv and Washington, officials told CNN.