Sen. Amy Klobuchar

List reasons they think deal is not in public interest

Announces 'major announcement' this weekend back in home state

Legislation would take Clayton beyond "substantially lessen" competition trigger

Want to know what is being, or can be, done to minimize that impact

Said number of issues still need vetting

Makes pledge to Sen. Klobuchar

Markey & Co. say pay TV is no substitute, mandates must remain

Points to story that social media company was undercutting critics

Prominent Dems want better policing of who is buying what

Cites championing of copyright protections

Some early Hill returns divide along party lines