It was a marginal constituency for most of its existence.

Moss lost the highly marginal constituency after a single term and was forced to return to his previous career.

This marginal constituency has been held by the Conservative and Labour parties to date.

Candidates in marginal constituencies describe the gruelling process of inspection and interview they must go through to qualify for money.

Balls launched his bid while visiting two marginal constituencies in the Midlands.

She said Darlington had been chosen because it was a marginal constituency.

He had to fight hard in a marginal constituency, and in the 1955 general election had a majority of only 59 votes.

It is one of 83 such "marginal" constituencies with a Tory majority of less than 10 percent that the party has focused its resources on.

White managed to hang on to her marginal constituency for 20 years, at one election by just 72 votes.

The borough developed into a marginal constituency, particularly in the last half century of its existence.