Tonight on The ReidOut, Joy Reid leads with how back in 2004 Donald Trump was right in saying that the economy performs better under Democrats. Plus, as Vice President Kamala Harris announces a major plan to boost small businesses, economists point out that Trump's economic proposals, such as tariffs, would actually hurt Americans. Also, just days into the new school year, we have already seen our first school shooting, leaving four dead and several injured at a high school in Georgia. Leading gun control activist and Parkland school shooting survivor David Hogg joins us. Additionally, in breaking news, prominent Republican Liz Cheney, who once declared Trump "unfit for any office," has announced that she will be voting for Vice President Kamala Harris.