coattails \coattails\ n. pl. [fig.]
the influence of another person; the effect of association
with another person; as, he was elected to office on the
president's coattails.
[PJC]
{on the coattails of}
(a) helped by association with another person. See
{coattails}.
(b) caused by, or immediately following (an event).
[PJC]