Maryville University terminates an employee’s employment after the employee was late for work several times, had a bad attitude, repeatedly expressed unsolicited political opinions to customers, and was insubordinate to a manager. The employee is not a member of a union, does not have an employment contract, and is in a “right to work” state. The employee files a complaint with a state labor agency against Maryville University stating it was not fair that Maryville terminated the employment relationship, and that Maryville University is discriminating against her due to her political beliefs. Explain whether Maryville University is justified in its action or whether it may have illegally terminated the employee.