A Joke on Why Xi Jinping's Taxi-ride Story was Denied

Here is an internet joke on why Xinhua news agency denied Xi Jinping's taxi-ride story:
At Xi Jinping's home, Peng Liyuan, a well-known singer and Xi's wife, asked him angrily, "Where the hell were you on March 1st?"
Xi answered, "In the office, what?"
Peng, "Liar! You went to the hotel! See this newspaper report? Why the hell did you go there? to meet some girls?!"
Xi, "..., No! Of course not! It, it, it must be a fake news!"
So then Xinhua news agency immediately denied Xi's taxi-ride story.