The Senators who grilled Ticketmaster's executives over Taylor Swift tickets want the Department of Justice to keep examining the company's merger with Live Nation

• Sens. Amy Klobuchar and Mike Lee are asking the DOJ to keep examining Ticketmaster and Live Nation.
• The senators, who held a hearing on the company's practices, noted it failed to answer many follow-up questions.
• They're encouraging the DOJ to follow up and take action if it finds Ticketmaster avoiding competition.

Sens. Amy Klobuchar and Mike Lee are not shaking off their qualms with Ticketmaster and Live Nation.