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Vice President Kamala Harris announcing Minnesota Governor Tim Walz as her running mate Tuesday. Hours later, the two holding their first rally together in Philadelphia.
Harris also announced that she is officially the Democratic nominee for President.
Walz came out swinging, taking a jab at Trump saying, "Make no mistake violent crime was up under Donald Trump. And that's not even counting the crimes he committed."
Republicans are launching an investigation into Harris' handling of the southern border.
The House Oversight Committee demanding Customs and Border Protection turn over any internal communications with the Vice President's office related to illegal immigration.