lead by the nose

lead sb (around) by the nose (dominate or control someone so that they do exactly what you want them to do; || to force someone to go somewhere (with you); to lead someone by coercion) — полностью подчинить кого-л.; всецело подчинить себе кого-л.; ≅ веревки вить из кого-л.; вертеть кем-л. || силком тащить куда-л., насильно вести куда-л.

Example 1: He thinks she's perfect, and she leads him around by the nose. (thefreedictionary.com)

Example 2: They simply didn't know what they were doing and they were led by the nose by a manipulative government. (thefreedictionary.com)

Example 2: John had to lead Tom by the nose to get him to the opera. (thefreedictionary.com)

Example 3: I'll go, but you'll have to lead me by the nose. (thefreedictionary.com)

Example 4: ()

Origin / Etymology
This expression alludes to cows being led by rope attached to a ring which has been put through their nose.