Valerie Jarrett is a close advisor to Barack Obama who's now part of his administration. Her Wikipedia entry is miraculously missing any negative information on her, despite a few attempts to put some of it in. The entry also fails to note her role in the alleged attempts by Illinois governor Rod Blagojevich to sell the Senate seat vacated by Obama. That's despite the fact that she's very clearly the "Senate Candidate 1" mentioned in the Blago indictment, and despite the fact that an internal investigation by the Obama team claims to have cleared her of any wrongdoing in the matter.
The WP entry is the first Google result for her name in quotes, and all those who visit that page are not receiving a full picture of her but instead a sanitized biography going into her ethnicity, her former marriage, and other relatively meaningless issues.
Regarding her being "Senate Candidate 1", see a partial list of those who believe that to be her at , noting that some of those were written right after the indictment was released, and others later, including after the internal investigation was released. While there's certainly the extremely slight possibility that someone else could be that candidate, the very strong speculation that it's her should be noted together with a caveat that prosecutors haven't yet indicated who it is. If speculation like that is acceptable for the Washington Post, CNN, USA Today, and the rest, it's good enough for Wikipedia. Anything other than that is not giving the reader a full picture.
The negative information is related to the Judicial Watch article here
, which links to a large PDF containing information they received from the Illinois Secretary of State concerning land deals and her links to Tony Rezko and others. That negative information has floated in and out of the article; see the first version at  and the article history at . Any of those deleting the information could have put it into a form compliant with Wikipedia's "standards" but instead chose to just delete it entirely. Those who want to get negative information about someone who's "protected" into Wikipedia need to make sure and fill out all the forms in triplicate to avoid having that information deleted by those with an agenda.
The bottom line is that - depending on when someone accessed her entry - the visitors to her entry have received different versions of the truth: the Wikipedia version of the "truth" for some, and something closer to the real truth for others.
* "Jarrett Is Senate Candidate One" (tpmmuckraker.talkingpointsmemo.com/2008/12/senate_candidate_1_a_woman.php)
* "Senate Candidate 1 -- again, who is not alleged to have done anything wrong -- is probably senior Obama adviser Valerie Jarrett, the only woman candidate who has taken herself out of consideration." (marcambinder.theatlantic.com/archives/2008/12/blago_indictment_senate_candid.php)
* "The Not-So-Anonymous Senate Prospects in the Blagojevich Indictment" (observer.com/2008/politics/not-anonymous-senate-prospects-blagojevich-indictment): "Senate Candidate 1" is mentioned the most frequently and is clearly Valerie Jarrett"
* '"Senate Candidate 1" is apparently a reference to Valerie Jarrett' (washingtonpost.com/wp-dyn/content/article/2008/12/10/AR2008121001472.html)
* "No one with President-elect Barack Obama’s transition team has identified his close friend and adviser Valerie Jarrett as Senate candidate #1, as mentioned in the criminal complaint against Gov. Rod Blagojevich, but it’s clear that she is the person often mentioned." (ac360.blogs.cnn.com/2008/12/15/the-back-story-of-valerie-jarrett-illinois-us-senate-and-the-white-house)
* 'The 76-page complaint contains multiple references to "Senate Candidate 1," whose description clearly fits Jarrett' (usatoday.com/news/nation/2008-12-12-jarrett-blagojevich_N.htm)
* 'There are strong indications that Candidate 1 may be Valerie Jarrett' (abcnews.go.com/Nightline/Story?id=6424985&page=2)
According to Judicial Watch, Valerie Jarrett served as a board member for several organizations that provided funding and support for Chicago housing projects operated by real estate developers and Obama financial backers Rezko and Allison Davis. (Davis is also Obama's former boss.) Jarrett was a member of the Board of Directors for the Woodlawn Preservation and Investment Corporation along with several Davis and Rezko associates, as well as the Fund for Community Redevelopment and Revitalization, an organization that worked with Rezko and Davis.
According to press reports, housing projects operated by Davis and Rezko have been substandard and beset with code violations. The Chicago Sun Times reported that one Rezko-managed housing project was "riddled with problems -- including squalid living conditions...lack of heat, squatters and drug dealers."
As Chief Executive Officer of the Habitat Company Jarrett also managed a controversial housing project located in Obama's former state senate district called Grove Parc Plaza. According to the Boston Globe the housing complex was considered "uninhabitable by unfixed problems, such as collapsed roofs and fire damage...In 2006, federal inspectors graded the condition of the complex an 11 on a 100-point scale -- a score so bad the buildings now face demolition." Ms. Jarrett refused to comment to the Globe on the conditions of the complex.
 The version in  was added at 14:47, 15 November 2008. On 18:30, 16 November 2008, user Kantmann removed it, saying, Removed reference to Jarrett being "one of Chicago's biggest slumlords", because in was opinion, no citation, and poorly spelled phrase.
Someone who wanted an entry to reflect the truth would correct the misspelling, replace the opinion with a statement, and find a citation. The text was subsequently put back in, but then at 12:04, 23 November 2008, user Frank removed it saying, Removed unsourced text; see BLP policy
It was put back in again, this time with a link to the source until at 14:56, 17 January 2009, user Newross removed it again, saying, remove WP:BLP violations by 184.108.40.206 and Kilerkdgan; Judicial Watch is not a WP:RS)
(WP:RS means their "reliable source" rule.)