Counting Down the 10 Best Trump Insults of 2015

Donald Trump pledged not to run as an independent should he lose the party nomination after primaries on Sept. 3.

Donald Trump shows little reservation when it comes lobbing insults at others. No one is immune from the bombastic billionaire's comments – and he goes straight for the jugular.

In fact, Trump's refusal to bow down to the edict of political correctness has helped him stay at the top of the polls ever since he officially announced his run on June 16.

Currently, "The Donald" has a commanding 40% lead amid all major demographics, according to a WND/Clout poll conducted Dec. 18-27. The survey – released on Dec. 29 – found that Texas Sen. Ted Cruz trails Trump in distant second with 23%.

Here are the ten best Trump insults of 2015…

10 Best Trump Insults of 2015

Best of Trump Insults No. 10: "What a stiff, what a stiff, Lindsey Graham. By the way, he has registered zero in the polls," Trump said of Sen. Lindsey Graham (R-SC) at a campaign speech in Bluffton, S.C., on July 21. "A total lightweight. In the private sector, he couldn't get a job. Believe me. Couldn't get a job. He couldn't do what you people did. You're retired as hell and rich. He wouldn't be rich; he'd be poor."

Trump also shared Graham's personal cellphone number that day and said Graham had begged him to help get on FOX News' "FOX and Friends."

Best of Trump Insults No. 9: The New York Times quoted conservative radio talk show host Glenn Beck on Oct. 8 as calling Trump a "schoolyard bully" who is not in touch with tea-party conservatives. Trump fired back by insulting two birds – Beck and former Speaker of the House John Boehner – with one tweet:

Best of Trump Insults No. 8: Trump won't let Florida Sen. Marco Rubio live down his infamous 2013 State of the Union rebuttal speech, during which the young senator stopped to drink copious amounts of water on live television.

"Rubio, I've never seen a young guy sweat that much," Trump said before the Greater Charleston Business Alliance on Sept. 23. "He's drinking water, water, water, I never saw anything like this with him with the water."

Later, on Oct. 6, Trump sent Rubio 24 bottles of water labeled "Trump Ice Natural Spring Water." The package reportedly included a note that said, "Since you're always sweating, we thought you could use some water."

Best of Trump Insults No. 7: The real estate mogul has said repeatedly that former Florida Gov. Jeb Bush is too "low energy" to be president.

On Sept. 8, he released a satirical commercial that proclaimed Bush can help people fall asleep…