Following his poor debate performance against Donald Trump just over a week ago, US President Joe Biden has been trying to reassure the American public that his is fit for a second term in office. However, his efforts have only raised more concerns for Democrats over his ability to win in November. In an interview Friday with ABC’s George Stephanopoulos, Biden delivered hesitating and low-energy answers, often mumbling, as he tried to make up for his debate performance. In some cases, his answers seemed to indicate he wasn’t entirely aware of the gravity of the situation. When asked how he wou…