• President lashes out at Republicans during a closed-door Capitol Hill lunch over earlier votes • Senators Bill Cassidy, Rand Paul shift positions following White House intervention • Administration seeks $70bn for war, needs Democrats to pass 60-vote barrier WASHINGTON: The US Senate blocked an Iran war powers resolution late on Wednesday night, abruptly reversing course hours after a closed-door lunch between President Donald Trump and Republican lawmakers erupted into a fierce shouting match over the conflict. The late-night procedural vote ended in a 50-47 tally to block the measure, which originally advanced in May. The resolution directed Trump to withdraw US forces from hostilities with Iran until Congress authorises the deployment.