Cox had held the seat since the 1895 general election when he had narrowly defeated the sitting Liberal MP Herbert Paul.

At the 2010 general election he defeated the sitting Independent MP, Andrew Pelling who had previously been elected as a Conservative.

He was successful, defeating the incumbent MP, Dianne Yates of the Labour Party.

He won the seat with a majority of 905, defeating the Conservative MP, Lord Erskine.

He defeated the sitting Progressive MP for Kiama, Alexander Campbell.

He defeated the sitting MP, Kakpagu in the constituency primary election.

At the poll, he defeated the incumbent Liberal MP, James Kiley by just 428 votes.

He was elected to the House of Commons at the 1892 general election, defeating the sitting Liberal Unionist MP.

She defeated the sitting Conservative MP who had previously sat for Blackpool North by 8,946.

In a straight fight he defeated the sitting Conservative MP, Sir Edwin Stockton by a majority of 1,799 votes.