From Singapore to Thailand, why are political sibling rivalries such a huge draw?

Indonesian politician Rachmawati Sukarnoputri, 69, comes from a family of two presidents. Her father, Sukarno, fought for the country’s independence from Dutch rule, and was in office from 1945 to 1967. Her older sister Megawati Sukarnoputri, 73, who leads the ruling Indonesian Democratic Party of Struggle (PDIP), was president from 2001 to 2004.But blood does not always bind siblings in politics.Rachmawati is known as a staunch critic of her sister. During last year’s bruising legislative and…