Taiwan Solidarity Union (TSU) Chairman Huang Chu-wen (
"They have agreed to my resignation," Huang told reporters at the end of a TSU Central Executive Committee meeting.
Huang had come under pressure to quit following the Dec. 11 vote, when the party lost one seat to take only 12 of the 225 seats up for grabs. The party had expected to win 25 seats.
Several senior TSU lawmakers who were edged out in the hotly contested race had demanded Huang take the blame after they claimed he had mobilized all the party's resources to get his son elected while ignoring calls for assistance from other candidates.
President Chen Shui-bian (陳水扁) earlier resigned as chairman of the Democratic Progressive Party (DPP) to take responsibility for what critics said was a lackluster performance in the elections.
The DPP remains the largest party with 89 seats, an advance of two, but Chen has said this was a setback since he had hoped to make more substantial gains and, with the help of the TSU, gain control of the legislature.