Politics is like swallowing a rock, says SA finance minister

South Africa's Finance Minister, Tito Mboweni

South Africa’s Finance Minister Tito Mboweni has let off some steam about his political frustrations.

In a series of tweets, he complained about cabinet responsibility – the requirement that ministers back the collective decision of the government even if they do not agree with it.

He was “free but not free,” he wrote, adding that “sometimes it feels like swallowing a rock”.

Mr Mboweni, known for his colourful tweets on a range of subjects, did not clarify what policy he was complaining about.