Nexstar Media Group Inc. agreed to buy TV station operator Tegna Inc. for $3.5 billion in a deal that stands to dramatically expand Nexstar’s reach and test the Trump administration’s appetite for regulatory reform.

Once the deal closes, Nexstar and its partners will have 265 full-power television stations in 44 states and the District of Columbia

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.