Getty Images
Now playing
03:31
Did Clinton stop Sanders' momentum?
CBS
Now playing
01:43
Hillary Clinton defends Bill not resigning
CNN
Now playing
02:12
Clinton: Kavanaugh ceremony a political rally
Now playing
01:48
Clinton laughs at Kavanaugh's comment
CBS
Now playing
01:00
Hillary Clinton makes cameo on 'Murphy Brown'
hillary clinton amanpour impeachment_00014522.jpg
hillary clinton amanpour impeachment_00014522.jpg
Now playing
01:47
Clinton: Impeachment 'will be left to others to decide'
hillary clinton republicans amanpour intv vpx_00000000.jpg
hillary clinton republicans amanpour intv vpx_00000000.jpg
Now playing
03:04
Clinton: Civility starts by electing Democrats
Now playing
00:55
Clinton ends Franklin tribute with smartphone
CNN
Now playing
01:49
Clinton rejects Trump comparisons to her husband
Schomburg Center
Now playing
01:58
Bill Clinton: I apologized for Lewinsky scandal
US President Donald Trump (L) and Russian President Vladimir Putin arrive for a meeting in Helsinki, on July 16, 2018. (Photo by Brendan Smialowski / AFP)        (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
BRENDAN SMIALOWSKI/AFP/Getty Images
US President Donald Trump (L) and Russian President Vladimir Putin arrive for a meeting in Helsinki, on July 16, 2018. (Photo by Brendan Smialowski / AFP) (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
Now playing
04:21
Fact check: Hillary Clinton's misleading comments
Former US Secretary of State Hillary Clinton speaks at the Eighth Annual Women in the World Summit at Lincoln Center for the Performing Arts on April 6, 2017, in New York City.
Angela Weiss/AFP/Getty Images
Former US Secretary of State Hillary Clinton speaks at the Eighth Annual Women in the World Summit at Lincoln Center for the Performing Arts on April 6, 2017, in New York City.
Now playing
00:39
Hillary Clinton goes after al-Assad, Putin
AUSTIN, TX - NOVEMBER 17:  Former U.S. Secretary of State Hillary Rodham Clinton signs copies of her new book 'What Happened' at BookPeople on November 17, 2017 in Austin, Texas.  (Photo by Rick Kern/WireImage)
Rick Kern/WireImage/WireImage
AUSTIN, TX - NOVEMBER 17: Former U.S. Secretary of State Hillary Rodham Clinton signs copies of her new book 'What Happened' at BookPeople on November 17, 2017 in Austin, Texas. (Photo by Rick Kern/WireImage)
Now playing
01:29
Clinton: Trump parrots what Putin says
TV3
Now playing
01:01
Clinton: Children treated as political pawns
Broadway Video/Universal Television
Now playing
01:15
Miley Cyrus tears up thanking Hillary Clinton
RBG on sexism and HRC_00010727.jpg
RBG on sexism and HRC_00010727.jpg
Now playing
01:50
RBG says Clinton was criticized worse than men

Story highlights

Clinton told the audience at the hilltop home that she was "feeling very good" about the state of her campaign

The former secretary of state noted her win in Nevada

(CNN) —  

Hillary Clinton told an audience at a closed California fundraiser Monday that the top reason to defeat Republican front-runner Donald Trump in November is because of how his presidency would negatively impact the security of United States.

“There are a number of reasons to defeat Donald Trump, but chief among them is security,” Clinton said after a long riff about how Trump’s pitch to ban Muslims and other comments make it harder to work with Middle East nations and fight terrorism.

Clinton’s blunt comment, while casting Trump as a risk to the nation’s security, also leans into the chance that Trump could end up as the Republican standard bearer.

Trump handily won the South Carolina primary on Saturday, his second victory in his party’s nominating process.

Clinton did not mention another Republican by name at the $2,700-a-head fundraiser but repeatedly hit the party writ large.

“It’s just not who we are,” Clinton said about the Republican Party’s positions. “It’s quite a troubling vision. And it’s not just Trump. It’s all of them.”

Clinton’s fundraiser was at the Studio City home of Ellen Goldsmith-Vein and Jon Vein. Goldsmith-Vein is a movie producer and entertainment executive and Vein is the co-founder and CEO of MarketShare.

The outdoor event was audible from a nearby street.

Clinton told the audience at the hilltop home that she was “feeling very good” about the state of her campaign and the race against Vermont Sen. Bernie Sanders. The former secretary of state noted her win in Nevada and the fact that she will be heading to South Carolina later this week for the state’s primary on Saturday.

“We must keep the White House, and with your help that is exactly what we will do,” Clinton told her supporters.

Clinton also knocked Sanders throughout her speech, using familiar lines on education, guns and Wall Street that she uses at events open to the press.

“If we don’t stand up against the (gun lobby) … shame on us,” Clinton said, adding that this is a “big difference” she has with Sanders.

On banks, Clinton said, “If we had all the big banks broken up tomorrow that wouldn’t break all the barriers” that are facing Americans.

Clinton did not take questions from the audience.