photo: Corbis

Donald Trump's natural ability to insult everyone, including Democratic front runner Hillary Clinton, has been the core of his presidential campaign's success. Not only has he bashed her politics, but he's made sexist comments about her body and appearance. Oh, and let's not forget what he said about her bathroom break during the last Democratic debate.

"I know where she went — it's disgusting, I don't want to talk about it," Trump said. "No, it's too disgusting. Don't say it, it's disgusting."

And in November, he made yet another insulting remark about a woman's appearance. Only this time the target was Hillary and her hairdo.

"I tell you what, it really was shocking to see it because you're right, it must be [a wig], it was massive," Trump told conservative radio host Marc Levin. "Her hair became massive."

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But Trump didn't always have negative things to say about Clinton. In fact, there was a time when he was singing her praises. BuzzFeed managed to find an old blog post written by Trump himself during the 2008 election where he very openly said that he believed Clinton would be a "great president."

"Obama said he's just focused on winning the nomination, although at least one member of his team said Clinton would make a good vice-president. (I know Hillary and I think she’d make a great president or vice-president.),” Trump wrote on his personal blog.

There you have it folks. The concrete evidence that Trump doesn't actually believe Clinton would make a terrible president. It's all just political BS.

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It appears that he really can't help but admire Clinton, because there was even an instance this year where he slipped in a compliment.

In October, he praised her for her performance during the Democratic debate.

"She got through it fine," he had said. "It was a very kind debate, very gentle. She came out the winner."

He's even admitted to having donated millions to the Clinton Foundation. He said it himself during the first GOP presidential debate in Cleveland.

"Hillary Clinton, I said be at my wedding, and she came to my wedding," Trump said. "She had no choice because I gave to the foundation."

Trump may not realize it, but his new negative stance on Clinton has impacted his credibility. At least from what we can gauge on Twitter.

Trump is apparently back and forth about his feelings for Hillary. The man has even gone after former President Bill Clinton. The question is, if Hillary wins this presidency, will Trump try to rekindle his friendship with the Clintons? Will he show his support for the new president? That will be the true indicator as to whether he really believes that Clinton isn't suited for the presidency or if this was all done in an effort to win the election. The truth always has a funny way of coming out.