MONDAY’S CAMPAIGN ROUND-UP…. Today’s installment of campaign-related news items that wouldn’t generate a post of their own, but may be of interest to political observers.

* West Virginia Gov. Joe Manchin (D) hoped to see the state legislature approve a new measure over the weekend on holding a special election this year to fill the late Sen. Robert Byrd’s (D) vacancy. That didn’t happen, legislators have adjourned, and no one’s sure what will happen next.

* In Colorado, gubernatorial hopeful Scott McInnis (R) is still reeling after his plagiarism scandal, and some of his top staffers are starting to run for the exits.

* On a related note, a SurveyUSA poll of Colorado Republicans found 64% want someone other than McInnis as their gubernatorial nominee. Leading the pack: former Rep. Tom Tancredo (R).

* In Arizona’s Republican Senate primary, Sen. John McCain, former Rep. J.D. Hayworth, and political newcomer Jim Deakin held two debates in the last three days. In Friday night’s event, Hayworth noted, “It’s really sad to see John McCain, who should be revered as a statesman, basically reduced to a political shape-shifter. John, you’ve changed positions so much in this campaign maybe we’ll have to set up an extra podium for you depending on which John McCain is going to answer which question.” By Saturday, it was perfectly clear that “these two guys really don’t like each other.”

* In Nevada, the Senate race is getting increasingly interesting, but the gubernatorial race isn’t — the latest Mason-Dixon poll shows Brian Sandoval (R) leading Rory Reid (D), 47% to 36%.

* It’s Rasmussen, so take the results with a grain of salt, but the pollster released its latest results in Delaware’s Senate race, and it’s a little closer than I’d expected. Rep. Mike Castle (R), the heavy favorite, leads New Castle County Executive Chris Coons (D) by 11, 47% to 36%.

* And in Nebraska, Democrats will field a gubernatorial candidate after all, with attorney Mike Meister allowing the state party to place his name in nomination at the state Democratic convention next weekend. He’ll face incumbent Gov. Dave Heineman (R), who’ll be the overwhelming favorite.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.