Question: What American road racing cyclist lost to  Jens Voigt for the second year in a row?

full_context: Document 1: David Francis (cyclist): David Francis is a former member of the United States Cycling Team (1989–1991) and was part of the next generation of American cyclists (after the success of Greg LeMond and Andrew Hampsten) to compete in professional cycling, a sport traditionally dominated by Europeans. His teammates included Lance Armstrong, George Hincapie, Bobby Julich and Jonathan Vaughters. He was originally coached by Bob Bills, but in 1990 USA Cycling Team Director Chris Carmichael hired former European professional rider, Rene Wenzel, to replace him. Francis traveled and raced internationally as a member of the United States Cycling Team for three years before leaving the team in 1991 to serve a two-year service mission for The Church of Jesus Christ of Latter-day Saints. He currently resides in Las Vegas, Nevada where he founded the David Francis Law Firm, a civil trial law firm that specializes in personal injury law.
Document 2: 2008 Deutsche Tourenwagen Masters: The 2008 Deutsche Tourenwagen Masters season was the ninth season of Deutsche Tourenwagen Masters since the series' resumption in 2000. The series began on 13 April at the Hockenheimring and finished on 26 October at the same venue, after eleven rounds. Timo Scheider won the title, having never previously won a race before the start of the season.
Document 3: 2010 Deutsche Tourenwagen Masters: The 2010 Deutsche Tourenwagen Masters season was the eleventh season of Deutsche Tourenwagen Masters since the series' resumption in 2000. The season began on 25 April at the Hockenheimring, and ended on 28 November at the Shanghai Street Circuit, after eleven rounds held in Germany, Spain, the Netherlands, the United Kingdom, Italy and China. Having finished second in 2008 and third in 2009, HWA Team's Paul di Resta became champion for the first time, having come out on top of a three-way title battle in Shanghai.
Document 4: 2006 Deutsche Tourenwagen Masters: The 2006 Deutsche Tourenwagen Masters season was the seventh Deutsche Tourenwagen Masters season after the series' was resumed in 2000. The number of race weekends was reduced, from eleven in 2005, to ten for the 2006 season. Each track hosted one race, with the exception of Hockenheim, which hosted two. As in 2005, each event consisted of one race of approximately one hour, with two compulsory pit stops for each car. The Championship was won by Bernd Schneider driving a AMG-Mercedes C-Klasse 2006 for the HWA Team.
Document 5: 2007 Deutschland Tour: The 31st edition of the Deutschland Tour cycle race took place in Germany from August 10 to August 18, 2007. It did not start with the traditional prologue but with a normal stage. The race included a team time trial, an individual time trial and seven stages, covering a total of 1292.5 km . The race began in Saarbrücken and finished in Hanover. For the second year in a row Jens Voigt held off Levi Leipheimer to take the victory.
Document 6: 2006 Giro d'Italia: The 2006 Giro d'Italia was the 89th edition of the Giro d'Italia, one of cycling's Grand Tours. The Giro began in the Belgian city of Seraing with a 6.2 km individual time trial. The race came to a close with a 140 km mass-start road stage that stretched from Museo del Ghisallo to Milan. Twenty two teams entered the race that was won by the Italian Ivan Basso of the team. Second and third were the Spain José Enrique Gutiérrez and Italian Gilberto Simoni.
Document 7: 1997 German Formula Three Championship: The 1997 German Formula Three Championship (German: "1997 Deutsche Formel-3-Meisterschaft" ) was the 23rd edition of the German Formula Three Championship. It commenced on 26 April 1997 and ended on 15 October. Opel Team BSR driver Nick Heidfeld won the championship title after a title battle with Benetton RTL Junior's Timo Scheider.
Document 8: Levi Leipheimer: Levi Leipheimer (born October 24, 1973) is an American former professional road racing cyclist. He was twice US national champion, winning the time trial title in 1999 and the road race in 2007, and is an Olympic medalist. Leipheimer was born and raised in Butte, Montana and resides in Santa Rosa, California. He is the patron of the widely attended King Ridge GranFondo, a mass participation ride in Sonoma County.
Document 9: Russ Mahon: Russ Mahon is an avid cyclist and founder of a cycling group known as The Morrow Dirt Club. Originally based in Cupertino, California, The Morrow Dirt Club were, arguably, the first to put multiple gears on pre-World War II balloon-tired bicycles for use off-road. These bicycles were the precursor to the modern mountain bike. Russ, along with Tom and Carter Cox, competed in a race in Mill Valley, California in 1974 on these bikes. It was there that Gary Fisher and Joe Breeze, among others, saw the bikes and developed them into the worldwide phenomenon known as mountain biking. In 2007, Russ Mahon was profiled in the documentary film, Klunkerz: A Film About Mountain Bikes.
Document 10: Nevada City Classic: The Nevada City Classic (previously: Tour of Nevada City; Father's Day Bicycle Classic), one of the most historic and challenging professional cycling races in the US, is held in Nevada City, California. Established in 1960, the Nevada City Classic commonly occurs on Father's Day and brings in thousands of visitors to Nevada County. While the first race brought out approximately 1,500 spectators, the numbers have swelled to 15,000 spectators in recent years. Sponsored by the Nevada City Chamber of commerce, the schedule includes Women's, Junior's, and Master's races, in addition to the Men’s main event. Past winners include Greg LeMond.
Document 11: Lance Armstrong: Lance Edward Armstrong (born Lance Edward Gunderson on September 18, 1971) is an American former professional road racing cyclist. Armstrong is the 1993 professional world champion, and won the Tour de France a record seven consecutive times from 1999 to 2005. However, in 2012, he was banned from sanctioned Olympic sports for life as a result of long-term doping offenses. As part of those sanctions, all results going back to August 1998, including his seven Tour wins, were voided.
Document 12: 2011 Tour de Luxembourg: The 2011 Tour de Luxembourg cycling race was the 71st running of the Tour de Luxembourg. It was won by Linus Gerdemann from Germany, a member of the Luxembourg-based team, . Gerdemann became in doing so the first German to ever win the Tour de Luxembourg.
Document 13: 2007–08 Tour de Ski: The 2007–08 Tour de Ski was the 2nd edition of the Tour de Ski and took place from 28 December 2007 until 6 January 2008. The race kicked off in Nové Město, the Czech Republic, and finished in Val di Fiemme, Italy, ten days later. It featured 8 top international cross-country skiing competitions, of which two were sprint events.
Document 14: Rahsaan Bahati: Rahsaan Bahati (born February 13, 1982 in Lynwood, California) is an American racing cyclist who currently rides for his own cycling team, Bahati Foundation Elite Team. He previously raced for the SKLZ-Pista Palace cycling team. Formerly, he rode for and managed the Bahati Foundation Pro Cycling team. He specializes in criterium racing and track cycling. In 2000 he won the amateur USCF National Criterium Championships and in 2008 he won the elite USPRO National Criterium Championships. It was reported that in 2010, Rahsaan will be the subject of a new television series entitled Bahati:Out of Compton that details his mentoring of 6 champion cyclists that share his inner-city Los Angeles roots.
Document 15: Tim Johnson (cyclist): Timothy Johnson (born August 5, 1977 in Middleton, Massachusetts) is an American professional racing cyclist who has found success in cyclocross and road bicycle racing, and is one of only three male riders (Jonathan Page was 2nd at worlds in 2007 and Matt Kelly was 1st at worlds in 1999) from the United States to stand on a UCI Cyclocross World Championships podium. Johnson has six career national championships - three Elite, two Espoir and one Junior - and a bronze medal from the UCI Cyclocross World Championships that he won in 1999 in Poprad, Slovakia. Johnson spent his 2009 road season riding for the Ouch presented by Maxxis team, of which he is the Road Captain. For 2010, Johnson rode for UnitedHealthcare Pro Cycling Team presented by Maxxis. Johnson is married to fellow professional cyclist Lyne Bessette.
ground_truth: Levi Leipheimer