Table 1. Descriptions of key independent variables and propositions.

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Table 2. Frequency of NGA lobbying letters—June 2001 to August 2006.

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Table 3. Crosstabs: Characteristics of letters sent to Congress and NGA success.

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Table 4. Correlations: Characteristics of letters sent to Congress and NGA success.

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Table 5. Logistic regression: NGA success as dependent variable.

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