Question

What industry did politicians use to spread information about their own party and opponents?

Answer 1

Here's a fact about Politics: It walks holding hands with Propaganda.

This tool that persuades and convinces the voters about some certain information, usually explicit during the sending of messages;

Propaganda serves also as a tool of governance, but in the political environment, it is a weapon against political opponents and the opposition in general. The best example of government propaganda is the Public Service Announcements.

Answer 2

Answer:

Politicians use Newspapers to spread information about their own party and opponents.

Explanation:

Newspapers are a very important tool of political manipulation. Through this tool, political parties can disclose their strengths, qualities and any kind of relevant information to increase their influence.  Similarly, through newspapers, political parties can expose their opponents, showing scandals, negatives points, political errors, abuse of power, among other events that show that the population should not rely on politicians associated with that party.