Here's the passage your question refers to:
“In 1972, Maine senator Edmund Muskie, who was competing for the Democratic presidential nomination, held a press conference outside while it was snowing. The news media reported that Muskie had tears on his face, even though the tears may have simply been melting snow. Muskie’s public image suffered, and he went on to lose the nomination.”
Answer:
The passage shows how presidential candidates don't have control over how the media covers them and their actions.
Explanation:
The passage is an example of how a presidential candidate can't act in order to determine what the news media will inform about him/her. Muskie held a press conference, invited the news media, and yet he couldn't define what they said about him.
