Answer:
1. lobbyists.
2. several lumber companies asking Senators to allow logging on federal lands.
Step-by-step explanation:
An interest group can be defined as a group of people sharing common aims, ideas and concerns, which seeks to influence government or a public policy.
An interest group consists of individuals who are only concerned about influencing public policy of the government on the basis of a particular common aim and interest. Examples of interest groups are labor groups, environmental interest groups, animal rights groups, etc.
Hence, interest groups often employ lobbyists to try to influence politicians to support their preferred policy positions.
An example of lobbying for a special interest group is several lumber companies asking Senators to allow logging on federal lands.