Well, not sure what is happening with the curves, but the ICU units in the Texas Medical Center are getting filled up again. They were pretty full in March and April (but still with a comfortable margin), and went emptied in late April and May. They are now getting dangerously close to be full again, even worse than ever before. So I would say we are in the second wave.
Like I've mentioned before, the problem with the US is that there is serious time lag among different states. Some states, like CA, NY and TX, experienced the first wave early and their cases went down in late April and May. On the other hand, the rural states just started their first wave in mid/late May. So if you look at the overall curves of the entire US, they look like they are staying the same. However, in reality, we are looking at the decline of the first wave in some states and coming of the first wave in others. And in those states finished with the first wave, we are getting into a second wave. And you will see the stacked second wave from other states some time later.
This is not the "2nd wave", it is just 1st wave keep going and going... It is parallel with loosen up of lock-downs. What China did was absolutely right: Just have a 2 month real lock-down and get over with it. This prolonged half ass lock-downs are making things worse. Until a vaccine shows up, we are screwed. When all of this is done, I think 200K life loss is possible for US. What I am really scared is fall/early winter. Then we may have a real 2nd wave. The lack of leadership from this genius admin is frustrating.