Well since nothing regarding charges have been leveled so far at the President, it would be next to impossible to say the findings against him have been anything but legitimate. There have been some convictions of others in the orbit of this investigation as well as some guilty pleas while avoiding trials. Mueller may come back with nothing. Or he may have charges to level. White collar crimes often take time. Much more time to piece together than your common thug crimes. And prosecutors/investigators even after a lengthy period may come back empty handed.
They charged Papadopoulos with two counts that aren’t crimes at all