The recent Taylor Swift concert ticket fiasco provided an opportunity for U.S. Senators to question Ticketmaster’s overwhelming market dominance. Sen. Amy Klobuchar (D-MN) noted that ticket fees now average 27% of the ticket cost, and can be as high as 75%. Ticketmaster is the world’s largest ticket seller, processing 500 million tickets each year in more than 30 countries, yet their site crashed during a presale event for Swift’s upcoming stadium tour, and the company eventually canceled a planned ticket sale to the general public.

Ticketmaster’s President and Chief Financial Officer Joe Berchtold defended the company, suggesting that lawmakers focus on the growing problem of ticket scalping and prohibit fraudulent practices, such as resellers offering tickets that haven’t officially gone on sale yet. He argued that these practices should be the main focus, not Ticketmaster’s market dominance.

However, Ticketmaster’s scale and power are undeniable, and the company has come under increasing scrutiny from lawmakers in recent years. In the past, Ticketmaster has been accused of using its dominance to pressure artists into exclusive contracts, and of creating its own secondary ticketing sites to compete with rival vendors.