In 2018, Laohavanich joined the newly formed Prachachon Patiroob (Reform People Party) led by , who led the religious committee of the junta's National Reform Council with Laohavanich after the 2014 coup d'etat. Laohavanich himself was selected as secretary-general of the party. The party supports the continued rule of Thailand's 2014 military junta under military dictator Prayut Chan-O-Cha and has the reform of the Buddhist clergy in Thailand as a central part of its platform. During the campaign, the party was investigated for using Buddhism for political advertisement but was cleared by the Thai Election Commission. The party originally won no seats in the 2019 Thai general election with only 40,000 votes, but after the Thai Election Commission controversially changed the formula in how seats were awarded after the election results were announced, the party gained one seat, allowing the junta-backed Palang Pracharat party to form a coalition government and control the lower house of Parliament with the extra seats.