But when his deputy, Wang Lijun, walked into the U.S. Consulate in the city of Chengdu in February 2012 and told American diplomats that Bo's wife, Gu Kailai, was involved in a murder case, Bo's career began to unravel.
Wang's move precipitated Bo's political demise. Soon after news of the events began to emerge, Bo was removed from his party posts.
A court found Gu guilty last year of murdering British businessman Neil Heywood in a Chongqing hotel room in 2011. She was given a suspended death sentence.
The following month, Wang was convicted of bending the law for selfish ends, defection, abuse of power and bribe-taking. He received a 15-year prison sentence.
Wang and Gu both appeared as witnesses at Bo's trial last month. Bo attacked their testimony and even claimed that Wang and Gu had been romantically involved.