Lawmakers from both parties are calling on the Federal Trade Commission to crack down on ticket scammers who use bots to horde tickets sold by online vendors and then sell them on the secondary market at inflated prices.

Marsha Blackburn, R-Tenn., and Richard Blumenthal, D-Conn., who were behind 2016's Better Online Ticket Sales (BOTS) Act, sent a letter to FTC chair Lina Khan asking what the FTC is doing to enforce that law, which prohibits circumventing security or other technological control measures by online ticket vendors, or selling tickets procured through such means.

"People, not scammers and bots, should be buying concert tickets," Blackburn tweeted Wednesday morning.

Blumenthal and Blackburn, the leaders of the Senate Commerce, Science, and Transportation Subcommittee on Consumer Protection, Product Safety, and Data Security, referenced the Swift fiasco in their letter, as well as would-be concertgoers having problems buying tickets to see Bob Dylan in Nashville.

Some reports have found secondary ticket sales ranging from $1,000 (Bruce Springsteen) to $40,000 (Adele).

"The Better Online Ticket Sales Act gave the FTC and state attorneys general the tools they need to crack down on parasitic online ticket bots – now they need to use them," Blumenthal said in a statement