Vice President Kamala Harris is currently on the toughest tightrope walk in politics. She’s No. 2 behind the country’s oldest leader whose shaky debate performance on Thursday sent Democrats into a panic about whether he can win the election and serve out a second term. Her name and her political future are bonded to the success of Joe Biden’s bid for a second term. [time-brightcove not-tgx=”true”] Harris has tried in recent days to both forcefully defend Biden’s record and his fitness while at the same time acknowledge his obvious failings in his debate against Donald Trump.