This stands opposite the Houses of Parliament and, allegedly, is patronised by members. There were quite a few suits and members of the chattering classes there today, but none I recognised.
Upstairs is dining only and downstairs there are two bars which would be pleasant but for the overcrowding. We had two pints of Badgers bitter which was fine.
Here's their web site.
This might be a nice enough pub when parliament is not sitting, but it is not worth the effort on a busy day.
I felt strongly enough about it to post a reaction on Trip advisor.