A whole bunch of Senate races are going to the wire, according to a new batch of election-eve polls released from Democratic-aligned firm Public Policy Polling.

In Georgia, Republican David Perdue edges Democrat Michelle Nunn, 46 percent to 45 percent, plus 5 percent for Libertarian candidate Amanda Swafford. In this state, however, if no candidate gets over 50 percent of the vote there will then be a special runoff election, to be held two months later on Jan. 6 — which could be an especially hard-fought event if control of the Senate turns out to still be on the line.

In Iowa, Republican candidate Joni Ernst is at 49 percent, with Democrat Bruce Braley at 46 percent.

In Kansas, independent candidate Greg Orman is at 47 percent, edging about Republican Sen. Pat Roberts with 46 percent, plus 3 percent for Libertarian candidate Randall Batson.

In New Hampshire, Democratic Sen. Jeanne Shaheen has 49 percent support, with Republican Scott Brown, a former U.S. senator from Massachusetts, at 47 percent.

And in North Carolina, Democratic Sen. Kay Hagan gets 46 percent support, followed by Republican Thom Tillis at 44 percent, plus 5 percent for Libertarian Sean Haugh.