Was an applicant for a position as firefighter discriminated against because he was a United States Air Force veteran? Explain. Please include references.

Van I. Irion, a Caucasian male who is a veteran of the United States Air Force, submitted an application for a position as a firefighter with Contra Costa County Fire Protection District in September 2000. The process for obtaining a position as a firefighter with Contra Costa County Fire Protection District involves several steps, which are set forth in the county's Personnel Management Regulations ("PMRs"). First, applicants are given a written test, a physical agility test, and an interview with the County Department of Human Resources, the results of which are combined to come up with a score for each applicant In addition, a 5% Veterans' Preference Credit is added to the scores of veterans who apply. The Interview Schedules indicate that Irion received a numeric rating of 4. The Interview Schedules also appear to indicate that at least two minority candidates with lower initial rankings and lower Chief's Interview scores were hired- #24 who is identified as Hispanic and received a rating of 3, and #53 who is identified as "Asian or Pacific Islander" and received a 3-4 score. In addition, one minority candidate with the same Chief's Interview score of 4 and a lower initial ranking, #34 was hired. Finally, two minority candidates with Chief's Interview scores of 4 and lower initial rankings than Irion, #68 and #69, appear to have been given initial conditional offers of employment, but they were not ultimately hired. Beadle, who was Personnel Officer for the Contra Costa County Fire Protection District at the time of the relevant events, states in his declaration that he was present at the meeting in which the Chief's Interview Panel made its recommendations for Academy Class 34 and that the panelists "did not recommend Mr. Irion for hire... because they unanimously felt his answers to questions illustrated that he was too rigid and would be a difficult employee." Irion asserts that Contra Costa County discriminated against him on the basis of veteran status, in violation of the Uniformed Services Employment and Reemployment Rights Act ("USERRA"). Under USERRA, employers may not deny a person employment on the basis of membership, including past membership, in a uniformed service. USERRA is violated when veteran status is a "motivating factor" in the employer's action. Question: Was an applicant for a position as firefighter discriminated against because he was a United States Air Force veteran? Explain