Last month, DAP's former Bangi MP Ong Kian Ming created buzz when he pledged support for a theoretical Khairy Jamaluddin premiership, saying he would gladly serve in the former Umno leader’s cabinet.

While the prospect created excitement, the realities of Malaysian politics make it very unlikely that Khairy would become prime minister in the near future.

This is because the parliamentary system requires Khairy to...