Trump declares open war on 'transgender lunacy', says 'there are only two genders'. What has he vowed to do?

Donald Trump has declared an open war on transgender lunacy, saying that there are only two genders. Speaking at an event for young conservatives in Phoenix, Arizona, Trump has vowed to crackdown on transgender. Transgender issues have become a hot topic in US politics. The US-President elect is also expected to ban all transgenders from serving in the military.