Can you sue the Government over broken promises?

Can MPs be sued for broken promises? Sorry for the wobble. Should have used a tripod. Or done some more bicep curls. The referendum case I mentioned: https://www.bailii.org/ew/cases/EWHC/... Where am I today? http://www.cornwalltour.co.uk/tresill... #artoflaw Disclaimer: Neither this nor any other video, may be taken as legal advice. I accept no liability whatever for any reliance placed upon it. Founded by Alan Robertshaw and @Blackbeltbarrister https://youtube.com/blackbeltbarriste...