It is the trend in TMay’s YouGov “best PM” ratings that should really worry the Tories
The miniscule lead with YouGov that Corbyn now enjoys as “best PM” is not what should concern her party but the trend which is illustrated in my chart above. It all peaked in the first polling after she made the brave, and in retrospect disastrous, decision in April to go for a general election three years ahead of schedule. Then she was a walloping 39% ahead. As can be seen this has moved steadily downwards ever since and now she…