is this a sentence fragment? with more than sixty percent of the popular vote, incumbent lyndon baines…

is this a sentence fragment? with more than sixty percent of the popular vote, incumbent lyndon baines johnson defeating republican barry goldwater, sr., in the 1964 presidential election. yes no
Answer
Brief Explanations:
A complete sentence needs a subject and a predicate. Here, "defeating" is a present - participle and the clause lacks a main verb for the subject "Lyndon Baines Johnson". It is a fragment.
Answer:
yes