Veto veto ("withholding Royal Assent") was last exercised in 1708 by Queen Anne with the Scottish Militia Bill 1708. The House of Lords used to have an effective power of veto by refusing to concur in bills adopted by the House of Commons. However, reform first by a Liberal government and then by a Labour government has limited its powers. The Parliament Acts of 1911 and 1949 reduced its powers: they can now only amend and delay legislation. They can delay legislation for up to one year. Under the 1911 Act, money bills (those concerning finance) cannot be delayed, and under
Constitution of the United Kingdom House of Lords; the monarch formally forms a third element of Parliament (see Queen-in-Parliament). The House of Commons, which unlike the House of Lords is democratically elected, has supremacy by virtue of the Parliament Act 1911 and Parliament Act 1949. An Act of Parliament of the United Kingdom is primary legislation and Parliament can (and does) alter the British constitution by passing such Acts. Under the British constitution, sweeping executive powers, known as the royal prerogative, are nominally vested in the monarch. In exercising these powers the monarch normally defers to the advice of the prime minister or other ministers.