Barry Knapp, managing partner and director of research at Ironsides Macroeconomics, has expressed concerns about the state of the U.S. economy, suggesting that a recession could be on the horizon by election day. What Happened: Knapp shared his views on the economy during CNBC‘s “Squawk Box” on Tuesday. He voiced his concerns about the market and the economy, while maintaining a positive outlook on tech spending. Knapp pointed out that the earnings story looks weak, with estimates going down for the most part. He expressed particular concern about the labor market, stating, “The underpinnings …