"Are White Republicans More Racist Than White Democrats?  By Nate Silver and Allison McCann"  Also here's a high-profile example for you, an upstandling gentleman who changed his registration for (D) to (R) in 1988.  David Duke is "A former Republican Louisiana State Representative, he was a candidate in the Democratic presidential primaries in 1988 and the Republican presidential primaries in 1992. Duke unsuccessfully ran for the Louisiana State Senate, United States Senate, United States House of Representatives, and Governor of Louisiana."  Also remember the GOP tactic of voter suppression, designed to suppress the votes of minorities...who, as we all know, are far more likely to vote for Democrats.  

Official web-site of the GOP.....of course not...don't be silly.  Today's GOP/Trumpian racism is a bit more subtle....code words and dog whistles... You know that.  Feel free to defend the GOP/Trump continued appeal to racists, but, please don't deny it exists.  That's silly..GC