So they naturally gravitate to the camp of the leader who can provide the most largesse, often abandoning their party in the process.

ECONOMIST: The Philippines

"I was attacked by people who are now in your Solidarity Party for abandoning Marxism and Leninism in favour of a broad Socialist party, " he added.

BBC: Court hears Tommy Sheridan denied sex club claims

In opposition he insisted on abandoning the Labour Party's commitment to restoring the earnings link for raising the basic state pension, ditched by Margaret Thatcher to save money.

ECONOMIST: Bagehot