I know this is not an original observation, but I am struck every day by Trump's continued, increasingly desperate actions in regard to the Russia investigations. Could anyone act more guilty than Trump in this regard? He has repeatedly attempted to short circuit the investigations, ranted when others in government have failed to do so on his behalf (firing or threatening to fire many of them), written or spoke multiple mis-leading statements, and has embarked on an intense campaign to attempt to discredit the special counsel in as many ways as possible (including such gems as the observation that some of Mueller's staff come from Baltimore, which according to Trump invalidates the investigation because Baltimore has a lot of Democrats!).
An innocent person would aid the investigations expecting that they would be quickly cleared and could move one. Instead, Trump's actions are those of someone who is convinced that they and/or their campaign will be found to be guilty of illegal activities and who is desperately doing everything possible to head-off the investigation. There are two potential explanations for someone feeling this way:
1. The belief that Mueller is so incredibly and overtly biased that, even though innocent, Trump and/or his campaign will be railroaded and found guilty. Of course this is what Trump is attempting to sell to the public right now, but any inspection of Mueller's credentials and reputation immediately reveals how absurd this concept is! In fact Trump and the Republican Congress heaped praise on Mueller when he was first appointed. I can't imagine a more upright, fair, serious individual to head the observation (which is are likely the actual problems Trump has with Mueller). Or,
2. Trump is fully aware that he, his family, and/or others in his campaign committed substantial illegal and/or immoral deeds and that Mueller will now discover, document, report, and indict individuals based on these actions. Trump is therefore now desperate, made more so by his subsequent attempts to interfere with these investigations and subvert justice, and will do anything to prevent the investigation.
I think it is pretty clear which of these possibilities is the likely one.
Although I believe the current evidence strongly indicative of illegal actions on the part of Trump's campaign, I find Trump's actions so suspicious that I fully expect far more serious crimes and misdeeds to be revealed by Mueller's investigation that extend well beyond what has been discussed to date.