Answer :
The horse-race coverage has had a negative impact on Congressional campaigns because there is a focus on poll numbers instead of on the candidate's policy.
What is an Argument?
This refers to the use of logic to try and convince a person about a particular viewpoint.
Hence, horse race coverage is a type of journalism that covers the public support and opinion polls of a political candidate which has left the individual campaign policy in the backseat.
Read more about arguments here:
https://brainly.com/question/25465770