The Supreme Court probably won’t be a featured topic at Tuesday night’s Republican presidential debate. But a couple of candidates have weighed in on the subject recently — Donald Trump on the justices he likes and doesn’t, and Marco Rubio on how he would use his court appointments to overturn this year’s ruling on same-sex marriage. At a town hall meeting in South Carolina on Saturday, Trump went after the prime target of his fellow conservatives, Chief Justice John Roberts, for twice voting against legal challenges to the national health care law. In 2012, Roberts wrote the 5-4 ruling that upheld Congress’ power to assess financial penalties on Americans who