A presidential candidate verbally tussling with a potential voter? Not what we would expect to see, but what happened during a campaign stop in Iowa when a voter questioned former Vice President Joe Biden about his age and his son’s work in Ukraine.
The tense exchange began when then man admitted he wanted “anyone but Trump,” but noted his concern about Biden’s age. He also questioned how Biden's son in Ukraine is different than Trump selling access to the presidency.
Biden responded by calling the man a "damn liar" because his son did nothing wrong. He also challenged the man to pushups or an IQ test, claiming he is perfect shape to run for president.
Source: NPR