TRUNALIMUNUMAPRZURE! Biden mumbles to himself and requires stage direction as he aimlessly wanders off at Obama’s library debut.

Joe Biden was seen mumbling to himself after being directed across the stage at the opening of Barack Obama’s presidential library.

The former president, 83, seemed bewildered at various points during the event in Chicago on Thursday.

Video showed him staring straight ahead into the crowd as Obama strolled past.He then lingered near the podium after much of the ceremony had ended, with cameras capturing him waving to the crowd, scanning the audience and remaining on stage after Obama and other dignitaries had moved away.

After being left alone on stage, Biden appeared to ask: ‘Where are the children?’ before adding: ‘Where’s my granddaughter?’ according to Daily Mail lip-reader Nicola Hickling.

That’s the evergreen question, isn’t it? Biden supporters struggle to square refusal to recognize granddaughter.