Tony Blair won a local election.
Tony Blair . He remains the most recent Labour Party leader to have won a general election . In May 1997 , the Labour Party won a landslide general election victory , the largest in its history , allowing Blair , at 43 years old , to become the youngest Prime Minister since 1812 . The Labour Party went on to win two more elections under his leadership : in 2001 , in which it won another landslide victory , and in 2005 , with a reduced majority .