Worth remembering aswell that Boris has not promised to vaccinate 15 million people (the over 70's) by mid-February - he has promised to invite them to be vaccinated by this date.
All he has promised to do is send out 15 million letters.

Remember last May and the Tory's promise to test 100k people a day - they got there by sending out thousands of tests in the post a couple of days before.

Spin spin and more spin.