Former President Donald Trump
Then-President Donald Trump prepares to address reporters at the 2018 NATO summit
  • Congress has passed a sweeping law that could spell trouble for Trump if he wins in 2024.
  • Trump's views about NATO received renewed attention after he riffed during a political rally.
  • The former president recalled how he told a foreign leader the US might not defend the NATO member.

Former President Donald Trump sparked a backlash over the weekend after he suggested that he would let Russia attack NATO members that fail to meet the alliance's spending targets.