The Politics of Shanghai is structured in a dual party-government system like all other governing institutions in the mainland of the People's Republic of China (PRC). In the last few decades the city has produced many of the country's eventual senior leaders. The city has been important politically to China since the end of the 19th Century.

The Mayor of the Shanghai Municipal People's Government (上海市人民政府市长, abbreviated as Mayor of Shanghai 上海市市长) is the highest ranking executive official in Shanghai. Since Shanghai is a direct-controlled municipality of China, the mayor occupies the same level in the order of precedence as provincial governors. However, in the city's dual party-government governing system, the mayor has less power than the Communist Party of China Shanghai Municipal Committee Secretary (中国共产党上海市委员会书记, abbreviated as 中共上海市委书记), colloquially termed the "Shanghai CPC Party chief".

Before 1941, Shanghai had a split administration: the International Settlement (governed under the Shanghai Municipal Council), the French Concession, and the Chinese City. The Chinese city was invaded by the Japanese in 1937 and the foreign concessions were occupied by the Japanese in 1941. After the occupation, the foreign powers formally ceded the territory to the Nationalist Government in Chongqing (a move largely symbolic until the Japanese surrender since the Nationalists no longer controlled Shanghai).

Shanghai is the largest city by population of the People's Republic of China (PRC) and the largest city proper by population in the world. It is one of the four province-level municipalities of the PRC, with a total population of over 23 million as of 2010. It is a global city, with influence in commerce, culture, finance, media, fashion, technology, and transport. It is a major financial center and the busiest container port in the world.

Located in the Yangtze River Delta in eastern China, Shanghai sits at the mouth of the Yangtze River in the middle portion of the Chinese coast. The municipality borders Jiangsu and Zhejiang Provinces to the west, and is bounded to the east by the East China Sea.

Once a fishing and textiles town, Shanghai grew in importance in the 19th century due to European recognition of its favorable port location and economic potential. The city was one of several opened to foreign trade following the British victory over China in the first opium war and the subsequent 1842 Treaty of Nanking which allowed the establishment of the Shanghai International Settlement. The city then flourished as a center of commerce between east and west, and became the undisputed financial hub of the Asia Pacific in the 1930s. However, with the Communist Party takeover of the mainland in 1949, the city's international influence declined. In the 1990s, the economic reforms introduced by Deng Xiaoping resulted in an intense re-development of the city, aiding the return of finance and foreign investment to the city.

David William Donald Cameron (pronunciation: /ˈkæmərən/; born 9 October 1966) is the Prime Minister of the United Kingdom, First Lord of the Treasury, Minister for the Civil Service and Leader of the Conservative Party. He represents Witney as its Member of Parliament (MP).

Cameron studied Philosophy, Politics and Economics (PPE) at Oxford, gaining a first class honours degree. He then joined the Conservative Research Department and became Special Adviser to Norman Lamont, and then to Michael Howard. He was Director of Corporate Affairs at Carlton Communications for seven years.

He was defeated in his first candidacy for Parliament at Stafford in 1997, but was elected in 2001 as the Member of Parliament for the Oxfordshire constituency of Witney. He was promoted to the Opposition front bench two years later, and rose rapidly to become head of policy co-ordination during the 2005 general election campaign. With a public image of a youthful, moderate candidate who would appeal to young voters, he won the Conservative leadership election in 2005.

Frank Scarpitti is the current mayor of Markham, Ontario.

Born in Ontario in 1960 and moved to Markham from Toronto in 1965. Scarpitti was appointed mayor from 1992 to 1994 following the death of Tony Roman, but was defeated by Don Cousens in the 1994 municipal election. He subsequently worked as broadcaster with CFMT in Toronto during his absence from politics from 1994 to 1997.

Scarpitti has served various roles in municipal politics as York Region Councillor (1985–1997), Budget Chief (2003–2006) and Deputy Mayor (1991–1992, 1997–2006). He was elected in 2006 as mayor to replace Don Cousens who has since retired. He was re-elected in 2010 with 85% of the vote.

Scarpitti has also served on various town committees, including:

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Alexander Boris de Pfeffel Johnson (born 19 June 1964) is an American-born British Conservative Party politician and journalist, who has been the elected Mayor of London since 2008. He was previously the Member of Parliament for Henley and editor of The Spectator magazine.

Johnson was educated at Primrose Hill Primary School, the European School of Brussels, Ashdown House School, Eton College, and Balliol College, Oxford, where he read Literae Humaniores. He began his career in journalism with The Times, and later moved on to The Daily Telegraph where he became assistant editor. He was appointed editor of The Spectator in 1999. In the 2001 general election he was elected to the House of Commons and became one of the most conspicuous politicians in the country. He has also written several books.

Under Michael Howard, Johnson briefly served on the Conservative front bench as the Shadow Minister for the Arts from April 2004 until November 2004. When David Cameron was elected leader of the Conservative Party in 2005, Johnson was re-appointed to the front bench as Shadow Minister for Higher Education and resigned as editor of The Spectator.