That's a sea change for Trump as you know. He almost never (if not never) admits mistakes.
He's maturing as a candidate
>>He almost never (if not never) admits mistakes.
Hmmm.
http://www.amazon.com/Extreme-Ownership-U-S-Navy-SEALs-ebook/dp/B00VE4Y0Z2
“(*) The leader is always responsible. (This is what they call “extreme ownership.” Basically, leaders must always “own” the mistakes and shortcomings of their teams.)”