Irving-based Nexstar Media has agreed to buy smaller rival Tegna for $3.54 billion, creating a local-TV powerhouse that seeks to compete better with big

The biggest owner of US TV stations is trying to get even bigger, believing the Trump administration will allow it to do so.

Upon closing of the Tegna deal, Nexstar and its partners will have 265 full-power television stations in 44 states and Washington, D.C., covering 132 of the country’s 210 television markets covering 80% of U.S. TV households, the companies said. The combined company will have stations in nine of the top 10 markets, and 41 of the top 50.