July 1998 — Margaret Beckett becomes Lord President of the Council and Leader of the House of Commons. Baroness Jay of Paddington becomes Lord Privy Seal, Leader of the House of Lords and Minister for Women. Stephen Byers becomes Chief Secretary to the Treasury. Ann Taylor becomes Chief Whip, which is now a cabinet position. Jack Cunningham becomes Cabinet Office Minister and Chancellor of the Duchy of Lancaster. Nick Brown becomes Agriculture Minister. Alistair Darling becomes Social Security Secretary. Peter Mandelson enters the cabinet as Trade & Industry Secretary. John Reid becomes Transport Minister, which is no longer a cabinet position (although Dr Reid will continue attending cabinet meetings). Lord Richard, Harriet Harman, David G. Clark, and Gavin Strang leave the cabinet. The President of the Board of Trade is no longer a title used by the Trade Secretary.
January 2001 — Peter Mandelson resigns as Northern Ireland Secretary and is succeeded by John Reid. Helen Liddell enters the cabinet and succeeds John Reid as Scottish Secretary.
Tony Blair's second Cabinet, June 2001 to May 2005
March 2003 — Robin Cook resigns. John Reid becomes Lord President of the Council & Leader of the House of Commons. Ian McCartney becomes Minister without Portfolio and Labour Party Chairman.