Patrick Maguire discusses political advertising - does going negative deliver, or do we all suffer when the parties get down in the gutter? He speaks to Steve Parker, former Head of Strategy at M&C Saatchi, author Ali Goldsworthy and campaigner Peter Tatchell.

Plus columnists Henry Zeffman and Oliver Kamm discuss Keir Starmer's aggressive new approach, whether the Conservatives can win on the economy, and Joe Biden's visit to Belfast.

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