Republicans are ahead in a group of five key Senate races, according to a new batch of polls from Fox News, though many races still have high levels of undecided voters that could keep shifting things around.
In Alaska, Republican former state Atty. Gen. Dan Sullivan has 44 percent, compared to Democratic Sen. Mark Begich with 40 percent.
In Arkansas, GOP Rep. Tom Cotton leads Democratic Sen. Mark Pryor, 46 percent to 39 percent.
In Colorado, Republican Rep. Cory Gardner has 43 percent, to Democratic Sen. Mark Udall with 37 percent.
In Kansas, Republican Sen. Pat Roberts has 44 percent, against independent challenger Greg Orman with 39 percent.
In Kentucky, Senate Minority Leader Mitch McConnell leads with 45 percent support, to Democratic Sec. of State Alison Lundergan Grimes with 41 percent.
The surveys of likely voters were all conducted from Oct. 4 to 7, and each poll has a margin of error of plus or minus 3.5 percentage points.