From the article:
The White House kept close tabs on some of The Wall Street Journal’s interviews with Democratic lawmakers. After the offices of several Democrats shared with the White House either a recording of an interview or details about what was asked, some of those lawmakers spoke to the Journal a second time and once again emphasized Biden’s strengths.
“They just, you know, said that I should give you a call back,” said Rep. Gregory Meeks, a New York Democrat, referring to the White House.

They contacted Meeks and told him to call back and change his story....and of course, he did. This is a real problem, and they know it. It's why you see fantasies and gaffes from Biden in every lesser appearance that he does now....doping him up on stimulants is not a safe strategy, so they reserve that for big things like the SOTU Address or a debate. But even then, you see the side effects of the amphetamines - angry, belligerent, combative, get off my lawnishness.