intro: Donald Trump is no newbie to celebrity feuds. He has sparked verbal wars with everyone from Rihanna to Obama, with many of his disputes starting from his Twitter page.
Now, Trump has taken aim at fellow media mogul Arianna Huffington.
"@ariannahuff is unattractive both inside and out. I fully understand why her former husband left her for a man- he made a good decision," Trump tweeted Tuesday morning.
Huffington divorced former Rep. Michael Huffington in 1997. Shortly after the divorce, he announced he was bisexual.
The Huffington Post tweeted back at Trump, "@realDonaldTrump We've always wondered what's under the bottom of the barrel. Please report. #flameout."
Trump has been slamming Huffington's online news site, the Huffington Post, since it ran a piece titled, "Donald Trump: Why So Moody?" noting that the "Celebrity Apprentice" star appeared "crabby" lately and listing a number of his Twitter posts.
"The Huffington Post is such a loser -- it will die just as AOL is dying, What a stupid deal AOL made to buy it!" Trump fired back Aug. 16.
Click through to see more of Trump's famous feuds with powerful Hollywood women.
quicklist: 1 title: Trump vs. Rosie O'Donnell text: The feud between Trump and O'Donnell seems to be never-ending. It first began in 2006 when the former "The View" co-host slammed Trump for not firing Miss USA Tara Conner after she admitted to using drugs, calling him a "snake-oil salesman."
Trump then called O'Donnell a "loser" and a "bully" and even attacked her weight.
It continued in May 2012 when Trump compared Cher to the O'Donnell after the singer expressed her hatred for Mitt Romney on Twitter. Trump tweeted at the singer, "Like @Rosie O'Donnell, a total loser!"
But O'Donnell couldn't stay quiet. She tweeted back several times saying, "He returns - like a raging herpes rash. He wants me ... He needs me - he is obsessed ... like a grandpa stalker."
But the pair's feud appeared to soften Aug. 21 after O'Donnell revealed she had suffered a heart attack. "@Rosie, get better fast. I'm starting to miss you!" Trump tweeted. media: 17105117
quicklist: 2 title: Trump vs. Barbara Walters text: After his first feud with O'Donnell, he went on to attack her co-host on "The View," Barbara Walters, in 2007. Trump sent a public letter to O'Donnell after reports that she blew up at Walters backstage at "The View," telling the co-host she had a right to be mad at Walters and that she "lied to both of us."
The next day on "The View," the ladies commented on the letter with Walters, saying, "That poor, pathetic man. He just can't let go. But we're moving on."
But Trump didn't stop there. He released a statement to E! News, saying, "Barbara Walters has taken the low road for the sake of her show rather than the sake of her morality," he said. "She lied with Star Jones and now she has chosen to lie again. ... Barbara has become a sad figurehead dominated by a third-rate comedian ... Rosie just pushed her out like a ('pathetic') puppet."
But the pair squashed their feud two years later on Walters' Sirius radio show, saying they missed each other. media: 17105242
quicklist: 3 title: Trump vs. Gloria Allred text: Drama ensued last April between Allred and Trump over the Miss Universe pageant, which Trump owns and controls. Canadian contestant Jenna Talackova was disqualified from the competition when pageant reps discovered she had undergone sexual reassignment surgery to make her a woman.
Talackova hired high-profile lawyer, Allred, to fight back against Trump, who said she could compete if she met the legal gender recognition requirements of Canada. Allred attacked Trump for questioning Talackova's sexuality.
"She did not ask Mr. Trump to prove that he is a naturally born man or to see photos of his birth to view his anatomy to prove that he was male," Allred said during a news conference.
Trump fired back by calling in to TMZ to discuss his genitals.
"I think Gloria would be very, very impressed with me," he told TMZ. Trump said he was willing to show his goods if Allred paid the right price.
The Miss Universe Organization eventually allowed Talackova to compete, where the beauty queen placed in the Top 12. media: 17105252
quicklist: 4 title:Trump vs. Carrie Prejean text: This feud began when Trump stripped Prejean of her Miss California title in 2009 after she violated her contract, "including Ms. Prejean's unwillingness to make appearances on behalf of the Miss California USA Organization," Miss Miss California USA executive director Keith Lewis said in a statement to People magazine.
"I told Carrie she needed to get back to work and honor her contract with the Miss California USA Organization and I gave her the opportunity to do so," Trump, who owns the Miss USA and Miss Universe organizations, said in a statement to People magazine. "Unfortunately, it just doesn't look like it is going to happen."
Trump later took the issue to TMZ , saying, "To me, she was the sweetest thing. Everyone else -- she treated like s**t."
Prejean didn't keep quiet. She told "Access Hollywood" she believed her firing was caused by her saying during the Miss USA competition that she believed marriage should be between a man and a woman. She also disputed the rumor that she violated her contract, saying, "I've been cooperating with them. I don't see why this is happening." media: 17105084