That's not exactly what was said about July or August. It was Trump's answer to when would we be done with these measures, and he replied by July or August it would washout. The press started pushing him about having curfews in place that long and Dr. Fauci said if we do the things now we need to do, we could see we are on the flattening of the curve and on the backside of the curve.
Today at the PC, they once again pushed on how long restrictions would be in place, Dr. Fauci was hesitant on giving dates or timelines, but said we should know this has worked and be in a better place in 45 days.
I think they feel the 8 week timeline is how long restrictions will be.