There had been rumours that something was in the offing. A video showed in my twitter feed from Chris Leslie announcing his resignation from the Labour Party, and I caught up with the remarkable news. Leslie’s words were wise, measured and statesman-like. He reminded me of Roy Jenkins’ Dimbleby Lecture, which signalled what then seemed to be the tectonic shift in British politics that gave birth to the SDP. The criticism of Jeremy Corbyn was stinging but fair. The criticism of Labour for failing to oppose what the Tories are doing on Brexit was spot on. He came across as a man of integrity, remaining true to the principles that took him into the Labour party in leaving a Labour Party that has moved far from that place.
The news that a group of MPs have left Labour to form the Independent Group feels both exciting and dangerous. It might well be the first clear break in the resolution of the crisis around Brexit. But, as the SDP found, the British electoral system creates a massive problem. Unless some Conservatives join soon, it also risks Theresa May calling an opportunistic General Election. Just because that would be grossly-irresponsible doesn’t mean it can’t happen.