Billionaire Donald Trump has established himself as the leading Republican candidate for president, with polls giving him twice the support of the nearest contender in a crowded field of 17. Trump has been the focus of media attention for his high level of support, his racist statements about Mexicans and his sexist attacks on women. In terms of policy, Trump has been leading the attack on the right of citizenship for people born in the U.S. – this right was granted by the 14th Amendment to the U.S. Constitution. He is calling for the U.S. citizen children of the undocumented to be deported, along with their parents, in what would be ethnic cleansing.