Republicans are pouring huge sums behind the Maine senator through a web of billionaire-funded super PACs. Troy Jackson, picked as the new Democratic nominee, has a lot of catching up to do.​Republicans are pouring huge sums behind the Maine senator through a web of billionaire-funded super PACs. Troy Jackson, picked as the new Democratic nominee, has a lot of catching up to do. ​NYT > Top Stories [ SOBAN NEWS: International and National ]