History's in the making in Chicago as the US gears up for its first Asian American and Black female presidential nominee.  

Vice President Kamala Harris is hours out from formally accepting her nomination for the White House at the Democratic National Convention.   

She'll also deliver a hotly anticipated pitch to voters. 

US Correspondent Richard Arnold told Mike Hosking it’s been a spirited campaign week for the Dems. 

He said the question now is if Harris can stick the landing. 

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