Trump eyes 'flexible' Islamic State war fund, Guantanamo upgrade

By Phil Stewart and Mike StoneWASHINGTON (Reuters) - President Donald Trump is asking Congress to give the Pentagon about $2 billion for a "flexible" fund to use against Islamic State over the next six months, as his administration weighs changes to the U.S.-led campaign against the militant group.Trump is also seeking to upgrade long-underfunded facilities at the U.S. military's Guantanamo Bay detention center in Cuba that Trump's Democratic predecessor, Barack Obama, unsuccessfully sought to c