1. Koch network to spend about another $20 million promoting GOP tax law  Washington Post
  2. Koch network to spend $20M selling GOP tax overhaul ahead of midterm elections  USA TODAY
  3. The Koch Brothers Plan to Spend a Record-Setting $400 Million  TIME
  4. Montini: Doug Ducey do-si-dos, again, to the tune of billionaire dark money Koch brothers  AZCentral.com
  5. Full coverage

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