导致党内发生重大变革. Senior MPs resign, triggering major party reshuffle.

议会的高级成员已经辞职, Senior members of parliament have resigned, triggering a major reshuffle within the party. 这一事件在"生命循环"的标题下宣布, 表明政治格局发生了重大转变. This development was announced under the headline "circle of life," signaling a significant shift in the political landscape.