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:
* It's Primary Day in Kansas, Michigan, Missouri, and the state of Washington. In fact, it's part of a very busy primary week -- Tennessee's primaries are on Thursday and Hawaii's primaries are Saturday.
* Arguably the two biggest races to watch today are Kansas' U.S. Senate Republican primary, in which incumbent Sen. Pat Roberts is facing a challenge from a far-right physician named Milton Wolf, and the U.S. House Republican primary in the 4th district, in which incumbent Rep. Mike Pompeo is facing a challenge from former Rep. Todd Tiahrt.
* Also keep an eye on Michigan, where Reps. Justin Amash (R) and Kerry Bentivolio (R) are both facing primary challenges. The former is expected to prevail; the latter may very well lose. (If Bentivolio goes down, he'll be only the third incumbent to lose this cycle, following Virginia's Eric Cantor and Texas' Ralph Hall).
* With just five days remaining before Hawaii's Democratic U.S. Senate primary, one statewide poll shows appointed Sen. Brian Schatz ahead by eight, while another statewide poll shows his challenger, Rep. Colleen Hanabusa, ahead by eight. That's not helpful.
* In New York, Gov. Andrew Cuomo's (D) favorable ratings have dropped in the new Wall Street Journal/NBC 4 New York/Marist poll, but he still enjoys majority support and still has a large lead over his Republican challenger. The recent controversy over the governor's ethics commission is likely responsible for his standing's recent dip.
* In Arkansas' closely watched U.S. Senate race, Rep. Tom Cotton (R) has launched a strikingly aggressive anti-immigrant ad against incumbent Sen. Mark Pryor (D). It's so ugly, the Pryor campaign put their opponent's ad on YouTube so others could see just how anti-immigrant Cotton's message has become.
* On a related note, in New Hampshire, former Sen. Scott Brown (R-Mass.) still won't say whether or not he would have voted for comprehensive immigration reform, even as he tries to make immigration a central part of his campaign.
* And in Colorado's U.S. Senate race, Rep. Cory Gardner's (R) awkward flip-flop on "personhood" is drawing criticism from the far-right, which liked the conservative congressman's original position before he tried to switch sides.