evidence: Even before Vice President Kamala Harris selected Minnesota Gov. Tim Walz as her running mate Tuesday morning, Walz was facing fresh scrutiny over what critics said was a delay in calling in the National Guard during the 2020 protests that engulfed Minneapolis after the murder of George Floyd. [...] Trump himself has also falsely claimed — including last month during a rally in St. Cloud, Minnesota — that as president it was he, not Walz, who called in the National Guard during the protest, after Walz dragged his feet. While that claim is not true, Walz and the Minneapolis mayor have long pointed fingers at each other over the delayed response, with Republicans blaming both of them in a later legislative investigation. [...] "Gov. Walz decided to deploy the National Guard at pretty much the same time Donald Trump was tweeting from his bunker, inflaming the situation and telling anyone who would listen to go after the protesters," said Democratic state Rep. Emma Greenman, who was a candidate for office during the protests, which occurred in the district she would later in 2020 be elected to represent.