To be at loggerheads is to be in conflict with someone, but in this sentence the men are in agreement with each other over political issues.
Context: He was even surprised to learn the men were pretty good friends when they weren't in complete agreement with each other over political issues.
Hypothesis: He was even surprised to learn the men were pretty good friends when they weren't at loggerheads over political issues.

Given this context, determine if the hypothesis is true (Yes, no, or unknown)?