Final answer:
The Silent Generation is likely to be more Christian based on historical trends of older generations being more religious, while Millennials demonstrate more liberal and possibly secular views.
Step-by-step explanation:
The question regarding which generation is more likely to regard themselves as Christian touches on sociological demographic trends. While the information provided does not directly answer the question about religious affiliation, it does illustrate generational attitudes towards political parties and societal trends. It can be inferred that the Silent Generation might be more likely to consider themselves as Christian because historically, older generations tend to be more religiously affiliated and conservative in their social views than younger generations like the Millennials. This generation is shown to be more liberal and possibly more secular, indicating they might be less likely to identify strictly with traditional Christian beliefs.
Answer: Silent Generation