泛藍連盟
In the 2000 presidential election itself, the split in Kuomintang votes between Soong and Lien led in part to the election of Chen Shui-bian. After the election, there was widespread anger within the Kuomintang against Lee Teng-hui, who was expelled for forming his own pro-Taiwan independence party, the Taiwan Solidarity Union. After Lee's expulsion, the Kuomintang moved its policies back to a more conservative one and began informal but close cooperation with the People First Party and the New Party. This coalition became informally known as the Pan-Blue Coalition. Although the members of the Pan-Blue Coalition maintain separate party structures, they closely cooperate in large part to ensure that electoral strategies are coordinated, so that votes are not split among them leading to a victory by the Pan-Green Coalition.