Neville Chamberlain
In 1929, the Conservatives lost the general election, and Ramsay MacDonald became the new Labour prime minister. The Conservative Party was trying to put tariffs (taxes) on imports to make trade in the British Empire stronger. Other people, including Lord Beaverbrook, a businessman who owned a lot of newspapers, disagreed by saying that trade should be free of tariffs. Beaverbrook started a new political party to fight the Conservatives. Chamberlain fought Beaverbrook's part in an election and won. That made him very popular in the Conservative party.