TOPEKA, Kan. — Republican Sen. Pat Roberts and independent Greg Orman have scrambled to assemble capable voter turnout operations as their Senate face-off goes down to the wire in this unlikely midterm battleground.

When Roberts’ new team took over his foundering campaign three weeks ago, they discovered an operation that hadn’t ordered any yard signs and a headquarters that didn’t have a computer printer or its own Internet service. Those problems were quickly rectified, and now Roberts is working closely with the Kansas GOP to build a ground game and integrate it with that of Gov. Sam Brownback, who also is in a dogfight but was more prepared.