Nothing, zero, nada was found to support the conspiracy theory. The Trump campaign did not collude with Russia. A few flunkies were indicted for unrelated tax issues and for lying to the investigators about some minor details. But nothing at all supports the dramatic claims of collusion made since the beginning of the affair. 
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In a just world the people who for more then two years hyped the conspiracy theory and caused so much damage would be pushed out of their public positions. Unfortunately that is not going to happen. They will jump onto the next conspiracy train and continue from there.
It seems that this was too much to expect from those who believed in Russiagate. These people are unable to think up a new conspiracy theory by themselves. Instead they go for a fishing expedition to find something that they can use to continue the fake outrage:

The House Judiciary Committee sent more than 80 letters demanding all communications from a host of controversies surrounding Trump, as the panel probes whether the president and his administration have engaged in obstruction of justice, corruption and abuse of power.