"The message is that America doesn't want to lead," said the Republican senator, who was once a fierce critic of Obama's foreign policy.
The whistleblower's leak had little impact on U.S. security policy and, despite his rhetoric, neither has Trump.
With his left-of-center foreign policy, Trump is trying to make a case that if Bernie supporters can't have Sanders, he is the next best thing.
The amiable Tennessean has a similar background to Trump's and has been consulting with the Trump campaign.
The Texas senator dubs the end of Obama administration as "proof there is a God" and compares "radical Islamic terrorism" to Communism.
Is the Republican Presidential candidate a top student or a stubborn ideologue?
U.S. Senator John McCain said on Thursday he is blocking President Barack Obama's nomination of Anthony Blinken as the country's number two diplomat.
The US has given up fighting the information war -- which ISIS, the Russians and the Chinese are winning
Writer Alex Perry discusses the challenges of reporting on the vast and diverse continent and the growth of the humanitarianism movement.