王力
To overcome Chunyu's presumptive hold on succeeding Wang Gen, Wang Mang took action. He collected evidence that Chunyu, a frivolous man in his words and deeds, had secretly received bribes from the deposed Empress Xu and had promised to help her become "left empress", and that he had promised his associates important posts once he succeeded Wang Gen. In 8 BC, he informed Wang Gen and Empress Dowager Wang of the evidence, and both Wang Gen and Empress Dowager Wang were greatly displeased with Chunyu. They exiled Chunyu back to his march. Chunyu, before he left the capital, gave his horses and luxurious carriages to his cousin Wang Rong (王融), the son of his uncle Wang Li (王立), with whom he had a running feud. Wang Li, happy with Chunyu's gift, submitted a petition requesting that Chunyu be allowed to remain at the capital. However, this request was treated with suspicion by Emperor Cheng because he knew of the feud between Wang Li and Chunyu. He ordered Wang Rong to be arrested, and Wang Li, in his panic, ordered his son to commit suicide. This dramatic action only made Emperor Cheng more suspicious. He therefore had Chunyu arrested and interrogated. Chunyu admitted to deceiving Empress Xu and receiving bribes from her, and he was executed.