So in your opinion what does the absolutely nothing so far qualify as, as far as Trump and Company go?
What we know:
The Russians engaged in quite an effort to spread negative headlines related to Hillary.
They are the probable culprits in the DNC email hack.
They are the likely source of DNC emails to Wikileaks.
They are engaged in attempts to hack voting systems, typically voter registration databases.
There were numerous contacts between Trump campaign officials and Russian government officials. In at least one conversation between Flynn and the Russian ambassador was about the sanctions on Russia.
The Trump campaign had the RNC strip the policy of providing weapons to Ukraine. Coincidentally that was immediately after Carter Page returned from a trip to Moscow.
There was a gambling operation, run in Trump Tower by the Russian mob. There is circumstantial evidence of money laundering by the Russian mob through Trump businesses. Much of that was in the Steele dossier.
What is suspected by many: There was an implied quid pro quo. Trump, during his campaign talked about withdrawing from Nato. That is something near and dear to Putin's heart. Trump talked about better relations with Russia and that we should cooperate in Syria...but no criticism of Russian involvement in the violence in Ukraine.
That is enough for the Mueller investigation.