The Democratic debate Saturday night has been a relatively subdued, substantive affair, but Martin O'Malley roused the crowd by labeling Donald Trump an "immigrant-bashing carnival barker." O'Malley made the slam when asked about whether the US should be worried about securing its border from undocumented immigrants. Instead, he made the case for a path to citizenship, declaring that the nation's symbol is the Statue of Liberty, not a border fence. O'Malley has used similar language previously against Trump, but this got the biggest applause of the debate in its first hour, notes the Atlantic live blog.