As I am sure you will know, circulation isn't the main driver for nationals, it is the readership profile. The "broadsheet" papers have never sold anywhere near the red tops but don't need to because they make more money from advertising. The Guardian's circulation figures have fallen back to what they used to be some time ago but the Scott Trust don't bail them out, the Trust is there to ensure that The Guardian remains to paper that CP Scott wanted it to be. The sole purpose of the Trust is to secure the financial and editorial independence of The Guardian. There is no Murdoch looking over the shoulder of the Editor telling them which Party to support. Long may that continue.