Trump vs. Huffington: The battle extends beyond the twittersphere. (DJDM / WENN.com)

Donald Trump takes his feuds very seriously. He told the New York Post that his enmity toward Arianna Huffington is so intense that he raised the rent on an apartment that Ms. Huffington was eying last year specifically to keep her out.

The two flaxen-haired powerhouses have butted heads in the past: Mr. Trump took issue with the coverage about him on Ms. Huffington's eponymous blog. Their skirmishes did not, however, dissuade Ms. Huffington from checking out Mr. Trump's (similarly eponymous) building at 502 Park Avenue.

Mr. Trump said that Ms. Huffington wanted to lease an apartment in the building right after inking the AOL deal last year.  "We didn’t make it easy for her; in fact, we raised rent to $100,000 a month especially for her," Mr. Trump told the Post. "The price wasn’t in her favor, nor did I care, because I didn’t want her in the building. She balked at the price.”

Mr. Trump said he was displeased with how he was written about in the Huffington Post, elaborating: "She is bad news. Only AOL, being so stupid, would have paid money to buy her site. AOL was even dumber than her husband. The trash they write about me is not reporting, there are so many inaccuracies about me on her site. I won’t hold back when I respond about her to my 1.4 million Twitter followers.”