Issue Spotter: Using the $7$ criteria used by the Court on page $421$ of the text, analyze the following set of facts and determine whether the individual in question should be viewed as an independent contractor or employee. You may or may not need to use all $7$ criteria.

James works for Lincoln Electric. He is highly specialized and helps train other instructors how to teach welding to their students. He travels across the country, working with different colleges and companies. As part of his job duties, he is responsible for booking airfare for himself and his assistant when he is scheduled to travel. James gets paid by Lincoln Electric and is the only person who does what he does for the company. He has been working at Lincoln Electric for $4$ years now on an at$-$will employment contract. His job title is Senior Welding Trainer. James has a cubicle at the office, but largely works from home unsupervised. While James provides the curriculum for his training sessions, all training materials are provided by Lincoln Electric. James wears a Lincoln Electric hat to work every day to show his loyalty to the company. Is James an independent contractor or an employee of Lincoln Electric? Please review the criteria on page $421$ of the text and explain your answer in sentence form.