Answer:
The two publishers that used yellow journalism to increase circulation of their newspapers during their "news war" were Joseph Pulitzer and William Randolph Hearst.
Step-by-step explanation:
Joseph Pulitzer and William Randolph Hearst were two journalists known for rewarding the persons implied in their stories in order to get exclusive interviews and for magnifying some breaknews in order to increase sells during the Spanish American War.
The term "Yellow Journalism" often used to describe this type of broadcasting implies their cruel manners of displaying the news to the world.
I hope it helps!