Well, Truman was a racist cockpunt, so that really only leaves JFK in the running.
Besides some quote from when he was like 20 years old or some sh*t living in the first couple of decades of the 20th century in freakin Missouri, what relevant citations do you have?
I'm not going to debate that the man was racist (let's be real honest here, most people who grew up before the 1930s probably held deeply racist views by today's standards), but what exactly qualifies him as a "racist cockpunt", which implies a degree bit more racist than "racist"?
Also relevant:
http://www.historylearningsite.co.uk/Harry_Truman_civil_rights.htmIt is quite clear he evolved on the issue.