The endless obstacles to confirmation deter the best  According to Mackenzie, the presidential personnel office must frequently offer a job to its fourth or fifth choice because the top candidates don't want to endure the inconvenience.
Since five years ago, the presidential personnel office has not offered a job to its first choice candidate.
mnli hypothesis: Since five years ago, the presidential personnel office has not offered a job to its first choice candidate. premise: The endless obstacles to confirmation deter the best  According to Mackenzie, the presidential personnel office must frequently offer a job to its fourth or fifth choice because the top candidates don't want to endure the inconvenience.