Pappas and Sununu will face off for a key Senate seat and other takeaways from New Hampshire’s primaries

By David Wright, Katie Doran, Izzy Lippolis, CNN (CNN) — Democratic Rep. Chris Pappas will face Republican former Sen. John E. Sununu in the race for New Hampshire’s open Senate seat, CNN’s Decision Desk projects. The battle for retiring Democratic Sen. Jeanne Shaheen’s seat could prove critical to her party’s hopes of flipping the chamber