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.

Senate Republicans want more details on Trump’s Iran deal as questions swirl around sanctions relief, nuclear restrictions and congressional approval.

Four Senate Republicans crossed party lines to approve the resolution, which passed the House earlier this month.

Two Republican senators switch vote and reject measure seeking to limit Trump's war powers in the military conflict with Iran.