Question: What is the middle name of the pundit who cited Leip's Atlas as a "preferred source for election results"?

Context paragraphs:
United Kingdom Election Results: United Kingdom Election Results is a website and e-book written by David Boothroyd, published in 1994.  Boothroyd also wrote "The History of British Political Parties", published in 2001.  The website includes material about elections in the United Kingdom, including election results, resources for further information and links to relevant websites.  Boothroyd used a minimalist approach for the site's design, avoiding "flashy graphics" and placing an emphasis on "authoritative unbiased information".

Saxony state election, 2009: State elections took place in Saxony on 30 August 2009, the same day as the Saarland and Thuringia state elections.  The election results decided control of the Landtag of Saxony (Saxony's parliament).  Minister-President Stanislaw Tillich's Christian Democratic Union (CDU) won enough seats in combination with their preferred partners, the Free Democratic Party (FDP) to enter into a coalition government, supplanting the grand coalition with the Social Democratic Party (SPD).

Psepholograph: A psepholograph (from the words "psephology" and "graph") is a graphical representation of political opinion poll results showing electorate-by-electorate results, rather than reporting polls in percentages of the survey total.  The psepholograph more accurately shows the results of non-uniform swings, and translates the results into an electoral effect on a multi-party system allowing for several simultaneous trends.  The psepholograph was developed in Australia in 1992 by Matt Balogh, and succeeds the Electoral Pendulum, developed by Malcolm Mackerras.  It allows political analysts to graphically communicate the complexity of election results to the media and public.

Parallel vote tabulation: The Parallel Vote Tabulation (PVT) is an election observation methodology that is typically based on a representative random sample of polling stations and is employed for independent verification (or challenge) of election results.  A PVT involves observation of the administration of the election, the process of voting and of counting of ballots at the polling stations, collection of official polling station results and independent tabulation of these results, parallel to election authorities.  A PVT is also referred to as a Quick Count.

Chris DiBona: Chris DiBona ('cdibona', born October 1971) is the director of open source at Google.  His team oversees license compliance and supports the open source developer community through programs such as the Google Summer of Code and through the release of open source software projects and patches on Google Code.  In his former work on Google's public sector software, he looked after Google Moderator and the polling locations API and election results.

Election audits: Election auditing refers to any routine review conducted after polls close for the purpose of determining whether the votes were counted accurately (a "results audit") or whether proper procedures were followed (a "process audit").  Results audits must be performed before the election results are declared final if their findings are to be used to correct errors.  Process audits can be performed between elections.

Nate Silver: Nathaniel Read Silver (born January 13, 1978) is an American statistician and writer who analyzes baseball (see sabermetrics) and elections (see psephology).  He is the editor-in-chief of ESPN's "FiveThirtyEight" and a Special Correspondent for ABC News.  Silver first gained public recognition for developing PECOTA, a system for forecasting the performance and career development of Major League Baseball players, which he sold to and then managed for Baseball Prospectus from 2003 to 2009.

F. W. S. Craig: Frederick Walter Scott Craig (10 December 1929 – 23 March 1989) was a Scottish psephologist and compiler of the standard reference books covering United Kingdom Parliamentary election results.  He originally worked in public relations, compiling election results in his spare time which were published by the Scottish Unionist Party.  In the late 1960s he launched his own business as a publisher of reference books, and also compiled various other statistics concerning British politics.

Dave Leip's Atlas of U.S. Presidential Elections: Dave Leip's Atlas of U.S. Presidential Elections is a web site that provides tables, graphs, and maps for presidential (1789–present), senatorial (1990 and onwards), and gubernatorial (1990 and onwards) elections.  Data include candidates, parties, popular and electoral vote totals, and voter turnout.  County-level data is available for many years, and all data are compiled from official sources.  Leip's Atlas has been cited as a "preferred source for election results" by statistician and political pundit Nate Silver.

Yalova: Yalova is a city located in northwestern Turkey, near the eastern coast of the Sea of Marmara.  Yalova has a city population of 100,863, while the population of the Yalova Province is 118,998.  as of 2011 .  Currently there is a controversy around the municipal election results in Yalova especially after the Supreme Election Board invalidated the 2014 Municipal Election results on April 24, 2014 after a few recounts that changed results.

Supporting paragraphs: Dave Leip's Atlas of U.S. Presidential Elections Nate Silver
Answer: Read