Bush, as president and Biden then as chairman of the Senate Foreign Relations Committee had worked together on a number of issues during the Bush administration.
Harris vowed to fight to "root out systematic racism" but, like Biden, made a broad appeal to unity, saying that Americans "have elected a president who represents the best in us."
After four full days of waiting patiently for the slow march of vote counting to work itself out, Democratic presidential candidate Joseph R Biden, 77, pulled off one of the great political turnarounds in America
The November 3 election saw a record voter turnout of 66.9 per cent, which is the highest turnout rate since 1900. The 1900 election had recorded 73.7 per cent voter turnout.