Or Bill Clinton saying to Ted Kennedy about Obama when Hillary was passed over and the nomination was given to Obama: "A few years ago, he would have been bringing us coffee."
Are these liberals "basically calling him a nigger without using the word"?
And by the way, the whole "birther" issue, questioning whether Obama is even a U.S. citizen, or eligible to be president, or whether he was born in Kenya, was first introduced by the 2008 Hillary Clinton campaign during the primaries, long before Trump or any Republican raised the issue.