The traditional view of committee influence relies on congressional processes enabling blocking or shaping legislation.

However, the erosion of these orders raises doubts about their continued importance for contemporary power dynamics.

Instead, this study finds committees use specialized knowledge to effectively guide colleagues and shape outcomes despite weakened procedural tools.

Interview Insights: Congressional staff interviews revealed how committee expertise translates into tangible political influence.

Quantifying Influence: Analysis of House floor amendments from 2005-2008 demonstrates the impact of committee guidance on legislation.

Key Findings:

* Committee power stems primarily from specialized knowledge, not procedural norms

* Expertise enables effective shaping and blocking of legislative content even outside traditional mechanisms

Why It Matters: This insight reframes understanding of how contemporary US Congress operates.