The quote from Cruz that shows he lied. In order to determine whether Cruz lied, one must first be in a position to judge the veracity of the statement in question. It is a fairly simple matter. Cruz makes a statement. Then someone else determines whether the statement is true or false. If the statement turns out to be false, then the case can be made whether it was done so with the intent to deceive.
So let's start with the statement. What statement did Ted Cruz make that you consider to be a lie?