“The lecture was interesting, but it was much too long.” “'My sentiments exactly!'” [=I agree with you completely]
A good politician understands public 'sentiment'. [=understands the opinions held by many or most people]
His criticism of the court's decision expresses a 'sentiment' that is shared by many people.
(..) Americans don't pay their mortgages. That's never happened in history. If you'll excuse me Dr. Burry, that seems like a foolish investment. Based on... prevailing sentiment of the market and banks, and popular culture... Yes, it's a foolish investment. But eh... Everyone's wrong... (..)2015 The Big Short