NPD formed on August 19, 2002. Following his arrest on suspicion of accepting bribes, Suzuki resigned from the LDP in June 1998. He was convicted of bribery and other charges in 1999. Critical of Junichiro Koizumi's policies including privatization of the Japanese postal system, Suzuki, while on bail, announced the formation of The New Party Daichi. The party's earliest member of The National Diet, Japan's bicameral legislature, was Suzuki's daughter, Takako Suzuki, in the House of Representatives. In the 2014 election, she ran on the Democratic Party of Japan list; NPD did not compete. She left the DPJ again in 2016. The New Party Daichi is categorized as a political organization as it fulfills the Japanese laws regulating party funding and elections necessary to be recognized as a political party. In 2002, the party fielded one candidate from a single-seat district, while Suzuki headed a roster of three candidates for the proportional representation constituency. In the 2005 and 2009 general elections of the lower house, Muneo Suzuki was elected to a proportional seat in the Hokkaidō bloc. In 2010, when the Supreme Court ultimately confirmed his bribery conviction, Suzuki had to give up his seat to serve his prison term. He was replaced in the House of Representatives by proportional runner-up Takahiro Asano but remained party leader. In the 2007 regular election of the upper house, the party endorsed independent Ainu activist Kaori Tahara in Hokkaido who lost to the two major-party candidates. NPD did not contest the 2010 upper house election. In 2013, it fielded two prefectural and nine proportional candidates, but failed to win a seat. In late December 2011, the party was joined by five Diet members, and renamed to New Party Daichi—Shinminshu. Because the party now had five members in the Diet and was founded before January 1, 2012, it was formally recognized as a political party in the legal sense in 2012. It became eligible to receive public party funding and other benefits such as nominating dual candidates in lower house elections. The party endorsed most district candidates from Ichirō Ozawa's DPJ-breakaway Tomorrow Party of Japan and did not compete in the proportional races. In Hokkaido, Daichi candidates – in turn, endorsed by TPJ – all lost their district races, but the party won one proportional seat. Tomohiro Ishikawa ranked the highest and took the seat. In 2010, he resigned and was replaced by a proportional list runner-up Takako Suzuki. Members of New Party Daichi – True Democrats were:
Unlike the Kizuna party, New Party Daichi – True Democrats initially wanted to remain with the coalition majority. For a few weeks, their members remained with the DPJ caucus in the House of Counselors, but formed a separate caucus in February 2012 and eventually sided with the opposition to the DPJ-led coalition later in 2012. The party reverted to its original name on November 28, 2012.
