Tessa Keswick was a special policy adviser to Kenneth Clarke MP from 1989-1995.
She has been deputy chairman of the Centre for Policy Studies since 2004, and has also been non-executive director of the Daily Mail and General Trust. 
Keswick is on record as donating to Vote Leave, the main eurosceptic campaign in the UK's EU referendum of June 2016.
Donated £20,000 on the 25 May 2016 to Vote Leave, the anti-EU campaign which convinced the voting public to leave the EU on 23 June 2016. 
- ↑ 'About Tessa Keswick', Centre for Policy Studies, accessed 27 June 2016
- ↑ Electoral Commission, Vote Leave Donor Search, accessed 27 June 2016