article_snippet.sent: ’ Sir John will enter the election fray this week as the Tories try to bolster the Tories campaign.
article_snippet.sent: Sir John will warn of the dangers of a Labour-SNP government.
article_snippet.sent: The ex-premier could be deployed to speak as early as tomorrow.
article_snippet.sent: Later in the week, David Cameron is due to make a first high-profile campaign appearance with Boris Johnson.
article_snippet.sent: There are growing calls from Tory MPs for the London mayor to be ‘weaponised’.
article_snippet.sent: It's very sobering to come home to after a day in the office,' David Cameron said. '