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More infamously , the group has been linked to a hacking campaign against Democratic Party members which resulted in the publication of private emails designed to destabilize the Hillary Clinton presidential campaign and undermine the US democratic process .
 ( data breach: a hacking campaign,  the group: attacker, Democratic Party members: victim, private emails: compromised data, resulted in the publication: purpose, destabilize the Hillary Clinton presidential campaign: purpose, undermine the US democratic process: purpose) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( data breach: a hacking campaign,  the group: attacker, Democratic Party members: victim, private emails: compromised data, resulted in the publication: purpose, destabilize the Hillary Clinton presidential campaign: purpose, undermine the US democratic process: purpose) 