evidence: Republicans are already attacking Kamala Harris' new running mate, Gov. Tim Walz, over his response to the violence that erupted in his state after the 2020 Minneapolis police killing of George Floyd. [...] The other side: Trump, who was president at the time, said at a recent campaign rally that he "sent the National Guard to save Minneapolis" in 2020, even though he did not. [...] Reality check: Walz later denied that he activated the Guard due to pressure from Trump.