Should an author use more than one claim to support an argument? Why or why not?

yes

Explanation:

Authors using logic to support their claims will include a combination of different types of evidence. These include the following : analogies and logical reasoning. citation of recognized experts on the issue.

kennedy creates personal credibility by saying he is more than fit to lead. he talks about the sixty day period that he constructed administration, and says based on that he will be an acceptable leader.

jfk has a great reputation as an american citizen. he fought in wwii, and earned the navy and marine corps medal. he saved several men on his pt-109 patrol torpedo boat after an attack by the japanese navy. he also served in congress for the 11th congressional district for massachusetts, and served three terms in the house of representatives.

explanation:

sir, we have done everything that could be done to avert the storm which is now coming on" is the sentence that best articulates this. then he gives the examples.   mark me brainliest