The Sinn Féin president is appealing to people not to try and punish the government in the same-sex marriage referendum.

Gerry Adams was speaking as his party launched their campaign for a Yes vote.

They plan to distribute 500,000 leaflets and call to as many doors as possible.

Mr Adams says this issue is too serious to try and punish the government on it in any way.

Mary Lou McDonald spoke to Lunchtime today about the issue and told Jonathan why Sinn Féin want a 'Yes' vote: