Rockefeller: Spectrum bill is the top priority for Senate Commerce

"If we are going to do D Block allocation, how are we going to make sure — in the days when you will see us constantly cutting — that we can find the capital … to make sure we build out the network?" he said. 

Sen. Tom Udall (D-N.M.) said he supports Rockefeller's bill, and that he wants to make sure the needs of border states will be met. 

"What's going down on the border right now are things like drug smuggling and human trafficking," he said. "How do we work the border into this situation?"

Sen. Roy Blunt (R-Mo.) focused on broadcasters and the mechanism of incentive auctions.

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