Final answer:
Leadership competencies are about potential, not performance; the statement is true. President George W. Bush's foreign policy was not liberal internationalism but rather neoconservatism, which focused on national security and a unilateral approach, making the statement false.
Step-by-step explanation:
The statement that leadership competencies identify leadership potential, not leadership performance, is true. Leadership competencies are traits, skills, and behaviors that are associated with the ability to lead effectively, which may indicate a person's potential to be a successful leader. However, they do not necessarily reflect their actual performance as a leader, which can only be assessed by observing a leader in action and evaluating the results of their leadership.
Regarding the question about President George W. Bush being a proponent of liberal internationalism in his foreign policy, the answer is false. While liberal internationalism is a foreign policy stance that emphasizes the role of international institutions and seeks to spread democracy and human rights, President Bush's foreign policy was characterized more by a unilateral approach and a focus on American national security interests, particularly in the wake of the September 11 attacks. This approach is often described as neoconservatism, not liberal internationalism.