Tā bèi xiàshǔ tuī shàngtái, yǒudiǎn huángpáo-jiāshēn de yìsi.
He was pushed to the top by his subordinates - a bit of a 'yellow robe draped on him' situation.
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history
In 960 CE at Chenqiao (陈桥), generals threw a yellow robe over Zhao Kuangyin while he was ostensibly asleep and hailed him emperor, founding the Song dynasty. Yellow was the imperial color; being 'robed' in it meant being made emperor.