The director for the Coalition for Marriage has handed a petition to Downing Street against plans to change laws to allow gay marriage.
Colin Hart told press outside No 10 that "the government should listen to the people" and to keep existing marriage legislation.
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Ed Miliband has pledged to give zero-hours workers the right to convert their contract into a regular job after three months.
More than 100 leaders have declared their support for a Conservative-led government, warning a Labour would "put the recovery at risk".
The winds will remain strong tonight and in the north showers will continue, which may turn wintry over high ground.