The debate over whether or not Joe Biden is too old to be president is getting heated.

He has struggled to collect his thoughts, mumbled incoherently at press conferences, referenced recent conversations with long-dead politicians, and recently, had to be reminded of Hamas' name.

It’s not a good look for any president. But it’s especially bad for the presumed Democratic nominee during an election year.

Today, CBC Washington senior correspondent Paul Hunter explains why an 81-year-old with memory lapses might be the only option the Democrats have.