A new lawsuit is inflaming tensions on the right between the powerful, business-friendly Koch political network and a rising coalition of populist conservatives pushing for a crackdown on Silicon Valley.

The lawsuit seeks emails and other communications between staffers at a Commerce Department tech agency and outside policy gurus who support the Trump administration's campaign to reign in social media behemoths like Facebook. Some of those targeted even include Koch allies who say the well-heeled and influential network is trying to scare partners into silence.

At the heart of the dispute is Section 230 of the Communications Decency Act, which protects companies like Twitter from lawsuits over content that appears on their platforms. Many Republicans, including President Trump, believe the shield should be amended or rescinded, citing bias on the part of social media giants. Pro-business elements like the Koch network say that reform would threaten innovation and free speech and that they're waging a determined fight against any changes.