It is always worth having a look at Conservative Home. Their editor has a piece today when he correctly asserts that all the Westminster gossip items will have little impact on the election result. He identifies 4 things that he things will move the polls. You've gust it, he identifies party unity as one :
The unity of the parties. Voters always hate divided parties. Thanks to our Cornish friends for noticing the story.
You can read the full story of the nasty Southport Tory splits and squabbles here (I know the story needs updating)