"After privately suggesting to Treasury Secretary Steven Mnuchin that he be allowed to formally sign the checks, Trump settled for having his name printed in the memo section..."

"... according to administration officials, who spoke on the condition of anonymity to discuss internal deliberations. The placement of Trump’s name on the stimulus checks was taken out of the hands of the IRS early in the process, according to two government officials. The plan has been closely held within the IRS, and Commissioner Charles Rettig has not discussed it on his daily calls with his top executives, senior agency officials said. When the decision came down from the Treasury Department late Monday that the first batch of paper checks would include 'Donald J. Trump' on the memo line, it was announced to just five senior IRS officials. The IRS, already tasked with quickly disbursing hundreds of billions of dollars in payments to Americans, is now rushing to prepare checks that bear Trump’s name.... While several senior Trump administration officials said they did not know where Trump got the idea for putting his name on the stimulus checks, many said they were not surprised by the move. Trump has long exhibited a desire for featuring his signature prominently on objects, including newspaper clippings, stock market charts and even Bibles."

From "Trump denied he wanted his name on stimulus checks. Here’s how it happened" (WaPo).

ADDED: Maybe I didn't spend enough time reading this article, but I still don't know "how it happened." Also what is the "it"? Is it that the name ended up on the checks or that Trump really did want his name on the checks and caused it to happen?