Harris pushed on Ukraine, debt and if 'mistakes' were made at border

US Vice-President Kamala Harris was pressed on issues including the Middle East, Ukraine, gun ownership and immigration during a one-on-one interview with CBS News' 60 Minutes.

The recorded interview comes as Harris ramps up media appearances on a series of podcasts and TV networks amid criticism that she has made very few.

Donald Trump also was invited to 60 Minutes, but declined.

There is less than a month to go before Election Day in the race for the White House between the Democrat and her Republican opponent.