Really?
Trump used to have a higher negativity rating. Now it’s down to 30%. Got a link to something different?
Perhaps the most striking finding from this poll is that not only does Trump lead the GOP field, he also has the highest favorability rating of any of the candidates in it. 62% see him favorably to 30% with a negative opinion. No one else has over a 60% favorability
http://www.publicpolicypolling.com/main/donald-trump/
That link is from Feb 4, 2016. If anyone has a link about Trump’s negatives since that date, I’d be interested in seeing the data.