John Mearsheimer takes your questions

This week on Switzerland, Tom Switzer is joined by Professor John Mearsheimer from the University of Chicago who takes questions from viewers during our live chat. Subjects include Iran, Israel, Lebanon, Ukraine as well as other topical current affairs. If Trump does not enter the war, will he be accused of abandoning Israel? But if Trump enters the war, will that mean Israel has an effective veto on the negotiations to end the Iran crisis? According to Professor Sachs, Trump should work to extricate the US from the Israeli-Iranian rivalry.