Diehard Hillary Clinton supporters who still refuse to accept that the nomination race is over have given themselves a name, Pumas, and a logo that the in-house lawyers at the Puma sportswear brand might like to take a look at. In the network of blogs where the name originated, it stood for "Party Unity, My Ass!" - a defiant shout of opposition to the notion that they should fall silent in order to speed the healing of Democratic wounds. Now that the Pumas have formed their own fundraising committee, however, they seem to have had a change of heart. According to their site, Pumapac.org, Puma stands for "People United Means Action", an exactly opposite sentiment, prompting the thought that if they don't iron out such inconsistencies in their message very soon indeed, there's a serious chance that Clinton might not be the next president.

· Barack Obama is spending the weekend in Chicago with no public engagements, but that doesn't mean he won't be busy. True, last night he was planning a relaxing date with his wife (and that secret service guy who's always hanging around in the background) followed by a bike ride today with his family (and that secret service guy who's always hanging around in the background). But tonight the Obamas will play host to eight seven-year-olds, arriving for a sleepover to celebrate their daughter Sasha's birthday. "These kids are planning to make pizza, so who knows what our kitchen will look like," Obama told USA Today. "They shouldn't call them sleepovers. They should call them wakeovers." Obama's weekend plans go some way to underline the fact that he is a regular guy, not a calculating politician, which was presumably exactly the effect intended by chief strategist David Axelrod when he came up with the whole sleepover idea.

· The Washington Post interviews Yazmany Arboleda, an artist whose exhibit in New York, entitled The Assassination of Hillary Clinton and The Assassination of Barack Obama, led to him being taken to a nearby police precinct for questioning while NYPD officers and secret service agents combed the site. "Anyone who calls it a hoax is misguided. They don't understand - there are many layers to this," once again proving that an art-school education ought to be a prerequisite for any kind of participation in public life, because nobody else understands. "My mission as an artist is to raise dialogue and conversation about substantive things - there's so much media time spent on superficial things." Like, for example, deliberately provocative art exhibits: the police let Arboleda go, and he's received more publicity than most unknown artists can ever dream of.

· Meanwhile, don't respond too harshly if coverage of the election, or of anything else for that matter, is a bit sparse in the New York Times, since the entire staff at the paper's head office in Manhattan seem to have been completely distracted from their work by two stuntmen climbing their new skyscraper - the famous French "urban climber" Alain Robert, and a copycat. The New York Times story on the incident is credited to James Barron, but includes the following endnote: "Reporting was contributed by Charles V Bagli, Russ Beuttner, Sewell Chan, Glenn Collins, David W Dunlap, Jason Grant, Christine Hauser, Corey Kilgannon, Eric Konigsberg, Jennifer 8 Lee, Trymaine Lee, Patrick McGeehan, Colin Moynihan, William K Rashbaum and Pal von Zielbauer."