It was a perfectly sensible question to ask a president, although not necessarily this particular president. The idea was that a normal president might have been briefed on information about how long we would need to keep everything shut down. A president would be expected to have better knowledge than the public and have some plan for going forward. Of course, it is kind of stupid to ask such questions of Donald Trump, who seldom listens to the experts that work for the government. Instead, he watches Fox News, like his clueless supporters.
Not even the health officials know how long this will last. The reporter was baiting Trump and you know it.
That accounts for some of the increase, but we can tell that cases are skyrocketing when they are running out of ventilators, face masks, and other vital equipment in hospitals. You don't keep up with the news much, do you?
Not Trump's fault. Any previous President (democrat or republican) could have stocked extra masks and ventilators to prepare for this. Neither party did. This is not something to blame on trump.