These are actions of an interest group or agents to influence the policy of the governments.

The answer is Lobbying.

Explanation:

Lobbying is a practice that has been carried out since ancient times, they refer to pressure groups that have a common interest for a small group of society. Lobbying takes action to influence the person decision-makers in government. It is considered a legal activity but must be regulated to be transparent.

Lobbying has the benefit of offering society the right to express an opinion and influence earlier the decisions taken by the political powers to offer society in general better benefits. The lobbying may be what best understands the problems and can find better solutions, it is a practice that must be normalized with the optimal rules.

I hope this information can help you.

answer; the president uses mass media to gain support for policies;