Jill Biden appeared to give her former president husband Joe a secret signal on The View after co-host Alyssa Farah Griffin asked a very risky question.

Biden, 82, was asked about Democrat insiders saying he'd suffered a sharp cognitive decline during his final year in office and began answering the question.

But after a few moments of relatively fluid speech the former president suddenly stopped and said: 'I've spoken enough.'

Jill, who was sat beside her husband, picked up the answer without a beat, sparking theories she may have nudged him or kicked him under the table to shut him up.

The former first lady has long been accused of hiding her ailing husband away during his doomed 2024 presidential campaign and telling him not to stand down despite growing outrage over his clear mental decline.

But she angrily denied 'sequestering' him during Thursday's live appearance on the ABC show.