The Campaign for Nuclear Disarmament have said that some constituencies have become “Trident marginals”, in which a closely fought contest involves different views on the issue.

The Green Party have welcomed comments by Plaid Cymru and the Scottish National Party (SNP) over the importance of nuclear weapons as an election issue.

The Tory and Labour supremos came together in last night's TV Leaders' Debate in an effort to defend the widely questioned replacement of Trident nuclear submarines.

Plaid Cymru's election candidates have signed a pledge promising to stand up for the needs of pensioners. They said that a “living pension” is needed more than a nuclear weapons system.