Politically, she tends to 'go against the tide' on her college campus. [=she tends to have different political opinions than most people on her college campus]
He became involved in social issues at the 'high tide' of the civil rights movement. [=at the most active and important time of the civil rights movement]
The team was on a losing streak, but then 'the tide turned' [=their luck changed] and they went on to win the championship.
(..) Two weeks ago, Omni stock went through the roof. And the Senate finally agreed to vote on the repeal of the Dreyfuss act. Well, look, I mean the tide is definitely turning. I just feel certain that soon we'll be keeping all Americans safe. I certainly hope so. But I think our next (..)2014 RoboCop