Context reveals, however, that this is a "joke" Trump tells all the time -- and he doesn't do it to be funny. Back in March 2018, Trump gave a closed-door speech at Mar-a-Lago to Republican donors in which he said this of Chinese President Xi Jinping: "He's now president for life. No, he's great. In response to the hubbub created by that "joke," Trump pushed back -- and, in the process, affirmed that he wasn't really joking at all (bolding is mine). There's no document locked up in a vault somewhere in the White House that has a 10-step plan to make Trump president for life.
Source: CNN June 18, 2019 15:00 UTC