Trump warns UN envoys on Iran's 'destabilizing' efforts 1/29/2018 11:34:45 PM President Donald Trump, flanked by Secretary of State Rex Tillerson, told members of the UN Security Council at a White House luncheon on Monday that they should act to counter Iranian destabilization. WASHINGTON (AFP) - 29 January 2018 -  President Donald Trump on Monday accused Iran of destabilizing the Middle East, as his  United Nations ambassador sought to bolster that argument by showing fellow envoys what she said was debris from an Iranian missile fired at Saudi Arabia. Meeting at the White House with members of the UN Security Council and his own national security team, Trump said the group had 'much work' to do. He drew up a daunting list of objectives, including countering 'Iran's destabilization activities,' ending the Syrian conflict, combating terrorism and denuclearizing North Korea. Earlier, UN Ambassador Nikki Haley took her fello...