I find the contrast between Raab's and Grieve's approach really quite saddening. They're both lawyers. For good lawyers, concepts of right, justice and the rule of law become almost the fibre of their being, and no matter what their political affiliation they will not close their eyes to blatant law-breaking and trashing of rights. That is essentially Grieve's position. Raab, on the other hand, simply doesn't care about inconvenient concepts like that and puts his political career first.
But I find it really puzzling that he continues to do so when he is in a marginal seat and therefore he cannot hope to be re-elected if Johnson stays in power. He probably can't even if Johnson resigned tomorrow, but at least if distanced himself from Johnson he might be left with a few shreds of credibility and could hope to be parachuted into a safe seat. As matters stand, politicians who have defended Johnson are in distinct danger of going down with him. That's why certain politicians are conspicuous by their absence on breakfast telly on the many, many occasions when Johnson needs a stooge to defend him. But Raab is still mad enough to put himself out there. Maybe Johnson knows where some very inconvenient bodies are buried?