Tactical voting is important

• The Electoral Reform Society estimates that 6.5 million voters 'held their noses' in the 2017 general election and voted tactically
• Websites such as SwapMyVote

  • Allow for more precise tactical voting
  • Allow two voters in different constituencies to make an informal agreement to cast a vote for one another's preferred party
• Election expert John Curtice estimates that tactical voting could have affected the outcome in 77 constituencies in the 2015 general election