https://www.snopes.com/2017/10/25/dnc-c ... e-dossier/The "filing a false report" is a claim that was made, but there's no credible news source that is even following the story anymore because there's nothing to the allegation.
The Clinton campaign hired a legal firm, Fusion Inc., as a vendor to provide the services related to the dossier. A private donor paid the bill, apparently through the DNC, or they facilitated it, and it was recorded as "legal services." Here's there statement:
"Hillary for America and the DNC complied with all campaign finance laws, including their obligations to appropriately report and describe the purpose of all of their expenditures. This research work was to support the provision of legal services, and payments made by vendors to sub-vendors are not required to be disclosed in circumstances like this. This complaint fails to even note the Federal Election Commission’s affirmation in 2013 of the relevant rule, notes no authority to the contrary, and is patently baseless."
A 'failure to disclose" is hardly anything close to colluding with the Russians to steal an election, and in this case, if it were the case, the penalty would be a minor fine. This sort of thing is being scatter-shot by the Trump administration, throwing stuff against the wall to see if it sticks. What it is telling us is that Trump is desperate to try to divert and discredit the Mueller investigation, because he must have all the goods he needs, or at least enough, to prove obstruction and collusion.
Good ole Snopes. This is hard to find elsewhere, because credible news sources don't carry news that's not credible.