Democratic presidential candidate Kamala Harris has selected Minnesota governor Tim Walz as her running mate. 

The duo will appear together in their first joint rally in Philadelphia later today, before visiting other battleground states this week. 

US Correspondent Mitch McCann told Mike Hosking Wolz is uniquely normal. 

He says he has a military background, then was a high school teacher and a football coach - great jobs but not ones usually associated with someone who goes on to become a vice president. 

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• Kamala Harris picks Tim Walz as running mate to win rural US votes