During a discussion on the new tiff between Donald Trump and former Florida Gov. Jeb Bush (R) over the Sept. 11 terrorist attacks and President George W. Bush, Republican presidential candidate Ben Carson defended his own comments about the aftermath of 9/11.

During the September Republican presidential debate, Carson said that the moderate Arab states would have turned over Osama Bin Laden in two weeks if the U.S. had declared its intention to become energy independent.

Sen. Bernie Sanders (I-VT) may have pulled ahead of Hillary Clinton in the New Hampshire polls in September, but the former secretary of state closed the gap again after the first Democratic presidential debate, according to a poll released on Friday by Suffolk University and the Boston Globe.

Among likely Democratic primary voters in New Hampshire surveyed following the debate, 37 percent favored Clinton and 35 percent favored Sanders. And among voters who tuned into the debate, Clinton led Sanders by five points.

Former Florida Gov. Charlie Crist (D) will announce on Tuesday that he will run for Congress, Politico reported on Friday.

He will run in Florida's 13th district, the seat currently held by Rep. David Jolly (R-FL). Jolly is running for the open Senate seat in the state.

A vice chairman at the Democratic National Committee on Thursday accused the committee's chair, Rep. Debbie Wasserman Schultz (D-FL), of lying about another official at the DNC, escalating a public tiff between Wasserman Schultz and two DNC vice chairs over the number of Democratic presidential debates sanctioned by the party.

R.T. Rybak, a DNC vice chairman and former Minneapolis mayor, told the New York Times that Wasserman Schultz made statements about another DNC vice chair, Rep. Tulsi Gabbard (D-HI) that are "flat-out not true," and he questioned whether the chair "can lead this party."

Democratic officials have been at odds for a while over the number of DNC-sanctioned presidential debates. The committee has permitted the candidates to participate in six debates despite calls from Sen. Bernie Sanders (I-VT) and former Maryland Gov. Martin O'Malley (D) for more debates.

Carly Fiorina on Thursday called out a voter who complained to her during a campaign event in Iowa that Muslims are "raising heck" and should leave the country.

"The Muslims are really raising heck right now,” the event attendee told Fiorina, according to video recorded by CNN. "They want to change our whole country to suit them. If they don’t like the United States, get out of here. Take your camel and beat it!"

This post has been updated.

After threatening to boycott the nest Republican presidential debate held by CNBC, Donald Trump said on Friday morning that the network had agreed to limit the debate to two hours.

.@CNBC has just agreed that the debate will be TWO HOURS. Fantastic news for all, especially the millions of people who will be watching!

— Donald J. Trump (@realDonaldTrump) October 16, 2015

Republican National Committee Chair Reince Priebus said on Thursday that the 2016 presidential election will make or break the party.

In an interview published early Friday morning, he told the Washington Examiner that even during a presidential election year, the RNC is still responsible for supporting House and Senate candidates.

"However, I think that we have become, unfortunately, a midterm party that doesn't lose and a presidential party that's had a really hard time winning," Priebus told the Examiner. "We're seeing more and more that if you don't hold the White House, it's very difficult to govern in this country — especially in Washington D.C."

After complaints from parents about new science education standards, Utah officials edited the standards to push back classroom discussion of climate change from sixth to eighth grade, the Salt Lake Tribune reported on Tuesday.

Students in sixth grade will learn that the greenhouse gas effect "maintains Earth's energy balance and a relatively constant temperature," according to the Salt Lake Tribune.

April Mitchell, a science specialist in the Ogden School District, told the Tribune that she was disappointed in the changes to the sixth grade curriculum.

During a Donald Trump campaign rally in Richmond, Virginia, on Wednesday, the real estate mogul's supporters got into a physical confrontation with protesters who joined the event to object to Trump's immigration policies.

At the event of nearly 5,000 people, about 20 protesters, some of whom were students at Virginia Commonwealth University (VCU), began heckling Trump when he began talking about immigration, according to CNN. Protesters were escorted out of the event by security and police officers, and numerous protesters got into verbal and physical altercations with other attendees at the event.

Republican presidential candidate Sen. Rand Paul (R-KY) said on Wednesday said that laws to protect LGBT individuals from discrimination in the workplace are unnecessary, arguing that new laws would only prompt more litigation.

"I think really the things you do in your house, we could just leave those in your house and they wouldn't have to be part of the workplace," Paul said when asked at Drake University in Des Moines, Iowa, whether employers should be able to fire people for being gay or transgender, according to a video recorded by the Huffington Post.