George Clooney writes that Hillary Clinton is a “voice of tolerance and experience” in a letter her campaign is sending out to supporters, inviting them to enter a contest to win invites to an April 16 fundraiser he and wife Amal are hosting at their Los Angeles home.

Clooney doesn’t mention Donald Trump by name in the letter, but refers to the GOP frontrunner’s slogan and rhetoric.

“If you listen to the loudest voices out there today, you’d think we’re a country that hates Mexicans, hates Muslims, and thinks that committing war crimes is the best way to make America great again,” Clooney writes.

“The truth is that the only thing that would prevent America from being great would be to empower these voices.”

The Clooneys also are hosting a reception for Hillary Clinton a day earlier in San Francisco.

In the letter, Clooney writes: “In all of this clutter, there’s been one consistent voice. A voice of tolerance and experience, from a candidate who’s spent a lifetime fighting for the rights of the less fortunate. A candidate who knows firsthand the complexity of our international relationships.

“That candidate is Hillary Clinton.”

A donation is not required to enter the contest, but the campaign is asking for $10 donations in the letter.

“As this primary process continues, Hillary could soon have an insurmountable delegate lead and with that, the Democratic nomination,” Clooney writes. “That would then make her the only grown-up in the room. And if ever there was a time for a grown-up, that time is now.”

Clooney also adds of the event at his home, “The good news is, I’m not cooking.”

Tickets to the Los Angeles event are priced at $33,400 per person, with money going to the Hillary Victory Fund, a joint committee of the Clinton campaign and the Democratic National Committee. Co-hosts of the event include Jeffrey and Marilyn Katzenberg, Steven Spielberg and Kate Capshaw, and Haim and Cheryl Saban.

Clinton is returning to Los Angeles on Thursday for a series of fundraisers and an appearance on “Jimmy Kimmel Live.”