How might interest groups such as the National Rifle Association or Sierra Club influence politics?

I got no idea who the Sierra club are but I can explain.

People who are aligned with the NRA will more than likely always vote against gun control  and a politician can take advantage of this by then saying "less gun control!" and then winning the majority votes of that group due to the politician saying that.

haha! : )

nice one lol

monitor contract compliance and results of forestry activities to assure adherence to government regulations.  

plan and supervise forestry projects, such as determining the type, number and placement of trees to be planted, managing tree nurseries, thinning forest and monitoring growth of new seedlings.  

establish short- and long-term plans for management of forest lands and forest resources.  

determine methods of cutting and removing timber with minimum waste and environmental damage.  

supervise activities of other forestry workers.

by the way there is no video here.