PM May says that the UK welcomes the Council approval of assurances on backstop.
Further comments:
- Wrong to take part in EU elections.
- Decision underlines importance of getting deal passed.
- I will build support for deal from tomorrow.
- I will make every effort to make sure we can leave with deal.
- I do not believe we should revoke Article 50.
- MPs will have a chance next week to look at choices that they face.
- If deal rejected then need for new plan by April 12th.