State Senator Robert Rodriguez (D) represents Senate District 32, mostly south and southwest Denver but with small parts of Jefferson and Arapahoe Counties. He's the assistant majority leader in the State Senate. He's the primary sponsor of Senate Bill 60 which would somewhat limit the ability to sell concert (and presumably other) tickets in the secondary market, e.g. to be a "ticket scalper", and specifically you would not be able to use an automated process (a "bot" or algorithm) to buy tickets for resale.
Ticket sellers would be legally barred from using copyrighted (by others) images and logos and text on websites without permission of the owners of those images/logos/text or to use such things to make one ticket-selling website look like another one. For example, a scalper trying to make his site look like Ticketmaster.
Here's a interesting one: The law would require that the total cost of the ticket including all fees be shown to a prospective buyer before the ticket is selected for purchase. Also, the part of the price of the ticket that is due to service, or similar, fees must be displayed in as prominent a way as the actual price of the underlying ticket.
The proposed fines are VERY high: Between $10,000 and $20,000 for a first offense, and between one and two million dollars for a fourth offense.
Concert promoters would NOT be able to revoke a ticket just because it was sold in the secondary market even if buy a seller not approved by the operator or the original ticket seller.
Consumer Protection In Event Ticketing Sales | Colorado General Assembly