Othello 2.3 – How does Iago manipulate Cassio?

Iago has mastered the art of deceit and has no boundaries when manipulating people . He seems to plant an idea in anyone’s head and they will believe it.  Iago leads them on and on,  and they are not even being remotely suspicion of his deceitful nature. Through the Play of Othello Iago is constantly ‘pouring Pestilence’ into the characters ears and in particulars Cassio’s ears. From the beginning we realise that Iago’s aim to to take Cassio’s role as lieutenant and to manipulate Cassio in order to do so. Iago persuades Cassio to have another drink and plans to get him drunk , Iago probably knew Cassio had a temper when he was drunk and this lead to Cassio being in a fight. Othello is left with no choice but take away his role of lieutenant and Iago’s wishes are granted. Iago is very quick to get what he wants but he still wants more. He always wants more.