Nuclear agreement

Trump, the Republican front-runner by far, announced the event during a 45-minute speech in South Carolina. 

Cruz aides said the Texas senator extended the invitation to the billionaire developer ahead of Congress' vote on the accord in mid-September. Cruz's campaign statement said the event is sponsored by Tea Party Patriots, the Center for Security Policy and the Zionist Organization of America. 

The Cruz campaign did not immediately offer other details, including the event date.

So why should anyone believe American intelligence officials when they express confidence that they can monitor Iran's compliance with the just-completed nuclear agreement?

The main reason, according to a classified joint intelligence assessment presented to Congress, is that the deal requires Iran to provide an unprecedented volume of information about nearly every aspect of its existing nuclear program, which Iran insists is peaceful.