美国总统特朗普：难以想象会有民主党议员不投票支持税改草案。我可没有对（延长2017年立法生效的减税法案）草案丧失信心。

Core Viewpoint - The article highlights President Trump's confidence in the support from Democratic lawmakers for the tax reform proposal, emphasizing the improbability of any Democratic member not voting in favor of it [1] Group 1 - President Trump expresses strong belief in the bipartisan support for the tax reform bill [1] - The proposal aims to extend the tax cuts enacted in 2017, indicating a continuation of the administration's fiscal policy [1]