US President Donald Trump warned Russia on Tuesday that he is prepared to impose strong economic measures if it does not work toward ending the war in Ukraine, and rejected a global move toward recognition of a Palestinian state in a combative speech to the UN General Assembly. In a wide-ranging foreign policy speech that included scathing criticism of the United Nations and European nations, Trump made the case for lower levels of global migration and said world leaders should abandon efforts to fight climate change, which he called “the greatest con job” in the world. Taken as a whole, the 56-minute speech was a rebuke to the world body and a return to form for Trump, who had routinely...