If its not sealed, and you really want it, you can search for it on the Public Access to Court Electronic (PACER) system. https://pacer.uscourts.gov
PACER is a pay system, BUT if your use is less than $30 in a quarter the fees are waived. Also, the cost of any one document is capped at $3, so the vast majority of PACER users never pay any fees.
So if want to find/read the affidavit, and its not sealed, that is probably your best bet, and it shouldn't cost you anything other than time.
When searching for the docket that contains the warrant, search the US District Court where the warrant was served. If the news articles are correct, the warrant was served in Nevada, and there is only one US District for the entire State of Nevada, and that should be the court where the warrant was issued.