Gregory G. Garreserved as the 44th United States Solicitor General from June 19, 2008, to January 16, 2009. He is currently a partner at Latham & Watkins, a private law firm... (wikipedia)
No, he would not be entitled to counsel to challenge his detainment,
He has a way of saying things, a way of putting things, that takes complex legal concepts and puts them in common-sense terms that can gather consensus and persuade.
The tone of that speech is much more consistent with the person who I worked with for eight years.
This kind of advocacy can be an academic exercise, but John always wanted to make sure he could explain his arguments in real-world terms. He's not the kind of guy who makes up his mind right away. He goes through cases brick by brick.