When major broadcast networks decide to move their programming from one local TV station to another, it rarely attracts the attention of the federal government. But ABC's decision to switch stations in St. Louis next month is getting scrutiny from Federal Communications Chairman Brendan Carr, who is already engaged in multiple legal battles with the Disney-owned network.

Carr has made inquiries about the affiliation change from KDNL, the network's home for more than 30 years, to KMOV, according to people familiar with the matter. The former is owned by broadcaster Sinclair, while the latter is operated by rival Gray Media.

It is one of the latest examples of Carr taking on big broadcast networks more aggressively during the second Trump administration than past chairmen. Though some large station owners have called for greater checks on the networks, Carr's move has gotten pushback from his liberal critics and even some conservative pro-business organizations.