美国总统特朗普：共和党必须团结，敲定“庞大的、漂亮的（税收）草案”。

Core Viewpoint - The article emphasizes the necessity for the Republican Party to unite and finalize a significant and appealing tax reform proposal [1] Group 1 - The call for unity within the Republican Party is highlighted as essential for advancing the tax reform agenda [1] - The proposed tax reform is described as "huge" and "beautiful," indicating a focus on substantial changes to the current tax system [1]