A closer look at the types of constituency races that are likely to have a pivotal role in the outcome
Downmarket drift holds back revival hopes in marginal constituency
Party hopes Amin’s EDL ploy will not hit wider ethnic vote
Rise in ethnic minorities helps opposition fight ahead of May’s general election
Marginal seat reflects national battle between Labour and Conservatives ahead of general election
Theatre upgrade and anti-seagull measures included in small print
Conservatives tipped to win only one of eight key marginal constituencies
Candidate elusive in seat rated party’s third most likely win
American lawyer stands against ultra-conservative sitting MP
Immigration is still very much an issue in a city that is proud of its race relations
Party employs Labour tactic of community politics but voter defections work against it
Fragmentation of UK politics makes this poll the most unpredictable in living memory
North Warwickshire constituency defines Middle England, writes Matthew Engel
International Edition