Why is candidate sentence to run the gauntlet?

The phrase "to run the gauntlet" refers to undergoing a challenging or punishing experience, often involving facing criticism or difficult obstacles. It originates from a historical military punishment where a person had to run between two lines of soldiers who would strike them. In a candidate context, it signifies the trials and scrutiny a candidate may face during a political campaign or selection process, where they must prove their resilience and capability to withstand pressure. Ultimately, it emphasizes the determination required to succeed in competitive environments.