(Politico) - Arizona Democrats like their chances to beat Martha McSally again in 2020. But they may have to settle a long and crowded Senate primary first. Four Democrats have already started laying the groundwork for Senate special election campaigns meeting with party leaders and even sparring over their credentials even before McSally was appointed to fill the next two years of the late Sen. John McCains term. The party believes McSally will be vulnerable after losing a tough campaign to Sen.-elect Kyrsten Sinema in 2018. Read More