Exact timing unknown at this time. I suspect AFTER 2012 election, but you can pinpoint with side-by-side photo analysis.
Look for ear, forehead size, and chin feature differences. I got it down to the late 2012-2015 timeframe (bow out of 2016 primary), but unable to get it more precise. Others may be able to narrow it with additional effort.
Note however multiple people appear to be have “played” Joe Biden. Steve Edwards from Fox LA is likely current Biden. SE departed his job 12-17 likely to prep for this role. A more skilled actor and prep needed for daily POTUS performance, IMO.
Exact timing unknown at this time. I suspect AFTER 2012 election, but you can pinpoint with side-by-side photo analysis.
Look for ear, forehead size, and chin feature differences. I got it down to the late 2012-2015 timeframe (bow out of 2016 primary), but unable to get it more precise. Others may be able to narrow it with additional effort.