Last year Clegg told Cameron that the police and MI5, which want to retain UK involvement in most of the justice measures, should be given a veto.
Moving on 20 years to December 2011, when Cameron used Britain's veto to block an EU-wide treaty, the Sun greeted the news with a splash headlined "Up Eurs" with a photoshopped picture of "bulldog" Cameron giving a two-fingered salute.
Nick Clegg has removed one of the barriers to a second coalition deal with the Conservatives by refusing to veto an in-out referendum on European Union membership, and instead insisted that the Tories backtrack on their plans for £12bn of welfare cuts.
Robinson said Sinn Féin's announcement that they will veto the welfare bill was "hamfisted".
Under the complex rules of devolution if two parties or more issue a "petition of concern" it can veto any proposed legislation as it would not have cross community support.
The federal government's power over the territories has changed since Howard used his executive veto.
'I've got the pen': Obama urges passage of legislation to extend middle income tax cuts, and promises to authorise it immediately The White House confirmed that Obama would be prepared to veto any legislation that maintained the Bush-era tax cuts on upper income earners.
The White House has said Obama would veto Corker's bill, but aides to the president are increasingly alarmed at the prospect of the legislation receiving the two-thirds majority that overrides the presidential veto.
Meanwhile Cameron and his media allies have made the "SNP veto" a major theme of their campaign to motivate disgruntled English voters.
But Sinn Féin and the SDLP exercised a veto known as the "petition of concern" where bills can be defeated if one side of the sectarian/political divide claims there is insufficient cross-community support for the law.
Sinn Fein is deeply opposed to putting the institutions on hold, which it sees as bowing to the unionist veto.
