I will assume you're just ignorant. Trumps voting records came out during this campaign. He has voted Republican in every election he's been in. He's attended the Republican convention at least twice. He's contributed equally to Democrats and republicans but for the last 6 or 7 years he donated exclusively to Republicans.
How do you know who he voted for? Because he says so? Please. There is nothing about Trump that says Republican. His policies are not conservative. He has no idea how conservatives think. He’s a liberal trying to impersonate a conservative. The image of a conservative that he portrays is not a true conservative but rather the liberal caricature of a conservative, which is the only image of a conservative that he knows. He slips up from time to time on his disguise. Like when he blamed Bush for 911. Like when he trashed Scott Walker for not increasing taxes. He’s just a parasite trying to feed off the GOP. If it won’t nominate him then he’ll run as an independent. Frankly his policies are so not Republican that it would be OK with me if one of the other GOP candidates ran as a third party candidate against Trump if he is nominated. Turn about is fair play. Trump created this divide. Now let’s see him try to bridge it.