Joe Biden and Donald Trump are set to face off in the first ever debate between a sitting president and a former president. The two foes are expected to get personal with their attacks with both not being on the best terms, evidenced by Trump shunning Biden’s inauguration after failing to concede defeat after the 2020 election. GBN America takes you through some of the key points of attack that we might see both candidates deploying. BIDEN’S AGEThe 81-year-old is the oldest ever sitting president in US history, and this is not a cause for celebration for many US voters. A lot feel Biden no lon…