Jonathan Isaby, who is also a regular contributor to the Telegraph's Three Line Whip blog, is set to join ConservativeHome.
Before joining the Telegraph to cover politics for its now ceased Spy column, Isaby was a political analyst in the BBC's Westminster newsroom between 1999 and 2003.
He also writes a monthly column for GQ magazine and has published a book on the recent London mayoral contest between Boris Johnson and Ken Livingstone.
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