Former President Joe Biden crashed his wife Jill’s debut book talk Tuesday, stealing her spotlight to bizarrely ask the former first lady whom she loves the most in a cringe-inducing moment before aides could cut him off. Jill Biden had been wrapping up a Q&A about her newly released book, “A View from the East Wing,” with moderator Whoopi Goldberg at the 92nd Street Y on the Upper East Side when Biden, 83, left his seat in the audience and wandered up to the edge of the stage.