The Prime Minister has the power to call a general election, which gives the incumbent government an advantage. If the Prime Minister believes his party is likely to win, he will often call a general election after only four years, as happened in 1983, 1987, 2001 and 2005. | The Prime Minister has the power to call a general election, which gives the incumbent government an advantage. If the Prime Minister believes his party is likely to win, he will often call a general election after only four years, as happened in 1983, 1987, 2001 and 2005. |