Any political system can commit mistakes and any state can commit mistakes. What is most important is to acknowledge these mistakes and put them right as soon as possible and put those behind them into account, bring them to account. ↗
As I said before, there are often disagreements as to what a particular set of facts mean. That is not at all unusual, and one shouldn't read into it more than is there. ↗
So without getting into the specifics, I can tell you that to the extent that investigation is a relatively important investigation and meaningful, the president would have been periodically briefed. ↗