Data:Axios/Ipsos poll; Chart: Will Chase/AxiosFor all it's impact on the U.S. economy, more than three-fourths of Americans say they know "a little" or less about how the Fed operates and what it does, according to a new Ipsos poll conducted for Axios.Get market news worthy of your time with Axios Markets. Subscribe for free.Why it matters: People who say they do not understand the Fed are more likely to say they don't trust what the Fed is doing. A breakdown of trust could lead to more politicization of the agency.More from Axios: Sign up to get the latest market trends with Axios Markets. Subscribe for free