Pew Research: Donald Trump has drawn a lot of attention in a slow-starting race for the GOP presidential nomination. Roughly a quarter of all Americans (26%) name Trump as the possible Republican presidential candidate they have heard most about lately, far more than volunteer any other candidate. Among Republicans, 39% name Trump as most visible -- more than all other possible GOP candidates combined. To be sure, Trump is standing out in a contest that has yet to draw much public interest or media coverage. In fact, about half of all Americans (53%) could not name anyone when asked which GOP candidate they have been hearing the most about.