台灣團結聯盟
Since resigning the chairmanship of the KMT, Lee stated a number of political positions and ideas which he did not mention while he was president, but which he appeared to have privately maintained. After Lee endorsed the candidates of the newly-formed Pan-Green Taiwan Solidarity Union, a party established by a number of his KMT allies, Lee was expelled from the KMT on 21 September 2001.