Theresa Villiers started out as a Member of the European Parliament in 1999 and joined the Westminster ranks in 2005. Since then, she has held a number of positions in opposition and in Government. Here's an overview of her career so far:

• MEP for London, 1999 - 2005
• Deputy Leader of the Conservatives in the European Parliament, 2001 - 2002
• MP for Chipping Barnet, first elected 2005
• Shadow Chief Secretary to the Treasury, Dec 2005 - July 2007
• Shadow Secretary of State for Transport, July 2007 - May 2010
• Minister for Transport, May 2010 - Sept 2012
• Secretary of State for Northern Ireland, Sept 2012 - July 2016