Credit where it’s due, McDonnell has always been sound on Ukraine. Not a fan of his persona or some of his domestic stuff and he is to the left of me, but he has more to him than Corbyn and that crowd, who just reflexively oppose the west. He probably would have been a more competent leader than Corbyn, but his terrier like style would have made it harder to present as this kindly old man who just cares about social justice, like with Corbyn.