The vast majority of evidence compiled over the past two months is showing that the number of coronavirus cases in the U.S. is greatly underestimated. Studies are being done to test parts of the population, and there are always cases of people testing positive when they showed little to no symptoms. Currently, around one in five people who get tested for the virus are found to actually have it. This is considered very high, and it doesn’t even account for the people who don’t get tested or have no symptoms. Even with more testing that encompasses a broader scope of people, we are still sitting at a 20% positive test rate. If we truly are curbing the virus, this percentage would need to be going down, not holding steady as even more people have access to testing.

Source: By Raphaël Dunant - Own work, data from 2019–20 coronavirus pandemic data and List of countries and dependencies by population, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=88208245