Do interest groups congress be an effective branch of government?

Yes, interest groups help congress to be an effective branch of government

Explanation :

Interest groups are organizations of people who have policy goals of working with the political procedures to achieve the goals. Therefore the groups influence different policies such as government lobbies. Organized interest groups hire assistants who advocate on behalf of the government.

Interest groups also engage in election activities by changing people to support the issues that they want to be addressed. Therefore the role of the interest groups is conduction grassroots activities on behalf of the congress and giving out people money in endorsing party candidates.