MSNBC's Ali Velshi shares Donald Trump's latest explanation for his attempts to get a $400 million plane from Qatar despite bipartisan condemnation after Trump spent his visit in the Middle East ...

It's been tested on just a handful of patients – but it caught our attention because of the doctor involved, Dr. Ali Rezai, who 60 Minutes first met 20 years ago. Dr. Rezai is a neuroscience ...