//…he's a bully and it seems not very bright//
Raab attended Dr Challoner's Grammar School, Amersham. He went on to study law at Lady Margaret Hall, Oxford graduating with a Bachelor of Arts degree in Jurisprudence. He then pursued further studies at Jesus College, Cambridge, where he won the Clive Parry Prize for International Law, and obtained a Master of Laws degree.
After leaving Cambridge, Raab trained professionally at the major City of London law firm Linklaters, completing his mandatory two-year training contract at the firm. Raab qualified as a solicitor in the UK under Linklaters in the year 2000.
Dr Challoner’s is one of the leading grammar schools in the country. You don’t get to go there, or remain there, if you are not very bright. Nobody who is not very bright will be offered a law course at Oxford or a post-graduate position at Cambridge. Linklaters is one of the UK’s leading international law firms. It is one of just five members of the "Magic Circle” of elite London law firms. I couldn’t be sure, but I doubt they take on anybody who is not very bright.
But apart from that, you could be right.