WHAT'S IN THE PAPERS?
:: FT, Metro, Daily Mirror, Daily Telegraph, The Times, Daily Mail, Guardian, Daily Record, Journal and Post, The Scotsman
Nicola Sturgeon has called for a second independence referendum in Scotland, a move seen as a challenge to Theresa May.
:: Daily Express
MPs vote to trigger Article 50 and begin divorce proceedings from the EU.
:: The Sun
Prince William missed a Royal engagement to go on a ski trip to a Swiss resort.
:: Daily Star
The four days of the Cheltenham Festival begin.
:: Watch the Press Preview on Sky News every evening at 10.30pm and 11.30pm. Tuesday night's reviewers will be former Labour Party adviser Ayesha Hazarika and Michael Heaver, former adviser to Nigel Farage.