In the 2001 elections, Chart Thai won 41 out of 438 seats and joined a majority coalition with the largest party, Thai Rak Thai. The party lost some seats in the 2005 elections, despite the support of popular massage parlor tycoon politician Chuwit Kamolvisit. The party won 11.4% of the popular vote and 27 out of 438 seats. The party, along with 2 other main opposition parties boycotted the elections of April 2006 hoping to make it impossible for a new Thai Rak Thai led administration to form.