"I am a registered Democrat and two-time unsuccessful candidate for office"

In this quote, Jack L. Chalker is mentioning that he is a member of the Democratic political party and has actually run for office two times, but was not effective in winning the election. This might imply that he has a strong belief in the worths and principles of the Democratic party and has actively tried to make a difference by running for office. However, in spite of his efforts, he has actually not been able to secure a triumph. This quote might likewise suggest that Chalker is identified and relentless, as he has not let his previous losses discourage him from continuing to pursue his political objectives.