Using Ourworldindata data, I expanded it to look nationally. There has been some rise off of the June 12 low of 3.9%, but overall, cases per test are holding steady around the same level as mid-May.
Taking these two bits of information together, it suggests the current rise in new cases is highly isolated right now. We do not have a general, nationwide spike going on. What is possible is we are not witnessing a second wave, but rather the first wave hitting these other states coupled with an increase in testing, which is leading to the overall number.
That said, since there was a tentative low in mid-June, that could indicate the beginnings of a generalized second wave. But we need more data.
Policy failure?
An increase in infections, hospitalizations, and even deaths isn't necessarily evidence of policy failure. You need the counterfactual.
We should be seeing a rise in cases after lifting the lockdowns, particularly in places that were not hit very hard in the first place (so not many antibodies in the community). Once a virus of this type has attained community spread, and particularly a virus that transmits asymptomatically, you cannot stop it in the medium term. Lockdowns should only be used as an emergency measure to stem (not stop, stem) the increase of cases IF hospital capacity is becoming strained, to give us enough time to set up field hospitals or come up with a strategy to protect the most vulnerable so the much less vulnerable can go back to the business of keeping the social fabric (supply chains, etc) intact.
Instead, lockdowns became popularly understood as ways to stop the spread of the virus. They cannot do this sustainably in the long run. To some extent, until there is a viable vaccine that reaches herd levels of usage and no new mutations, we must learn to live with Covid. Our focus should be on protecting the most vulnerable and lowering fatalities, which are by far and away concentrated in the 70+ age group.