Today's installment of campaign-related news items that won't necessarily generate a post of their own, but may be of interest to political observers:
* For a while, it looked like South Dakota's U.S. Senate race was getting very interesting, but a new Argus Leader/KELO-TV poll suggests the race is slipping safely into GOP hands. The new poll shows former Gov. Mike Rounds (R) overcoming his scandals and leading Rick Weiland (D), 42% to 33%. The new NBC/Marist poll shows Rounds ahead, 43% to 29%.
* In Colorado's U.S. Senate race, the NBC/Marist poll points to a one-point race, with Rep. Cory Gardner (R) leading Sen. Mark Udall (D), 46% to 45%
* In Iowa's U.S. Senate race, the NBC/Marist poll shows Joni Ernst (R) up by three over Bruce Braley (D), 49% to 46%.
* In Kansas' U.S. Senate race, the NBC/Marist poll found another one-point race, with Kansas, Greg Orman (I) ahead of Sen. Pat Roberts (R), 45% to 44%.
* In North Carolina's U.S. Senate race, the NBC/Marist poll has Sen. Kay Hagan (D) and Thom Tillis (R) tied at 43% each.
* In Arkansas' U.S. Senate race, most recent polling shows Rep. Tom Cotton (R) in the driver's seat, but the NBC/Marist poll shows his lead over Sen. Mark Pryor (D) at just two points, 45% to 43%.
* In Georgia's U.S. Senate race, though most recent polling shows Michelle Nunn (D) leading, the latest Atlanta Journal Constitution poll shows David Perdue (R) up by two, 44% to 42%.
* On a related note, Republicans and their allies are throwing millions of dollars into Georgia, hoping to tie Nunn to the president.
* I think it's safe to say the Mississippi story is over: "The state Supreme Court on Friday upheld the dismissal of Chris McDaniel's lawsuit over his June GOP primary loss to incumbent Sen. Thad Cochran."
* And though the results are a little hard to believe, the latest Maine Sunday Telegraph/Portland Press Herald poll shows Gov. Paul LePage (R) leading his re-election bid by 10 points over Mike Michaud (D), 45% to 35%. Independent Eliot Cutler remains a distant third at 16%, and if he's going to drop out to prevent LePage's re-election, he's going to have to act very fast.