Answer
In the 1906 general election, Campbell-Bannerman led the Liberal Party to a landslide victory over the Conservative Party. The Liberals won 399 seats, while the Conservatives won only 157 seats. This was a major upset, as the Conservatives had been in power for the previous 18 years. The Liberals' victory was due in part to the unpopularity of the Conservative government's policies, such as its support for tariff reform.