In 2013 the Government established an advisory panel to conduct a review of constitutional issues – including an examination of the term of parliament. Other issues discussed at public meetings held by the panel were the number of MPs New Zealand should have, whether a written constitution is needed, and whether all legislation should be consistent with the Bill of Rights Act. Both Prime Minister John Key and Opposition leader David Shearer expressed support for an extension of the parliamentary term to four years. The main argument put forward in support of a longer term is that "Governments need time to establish and then implement new policies".