Donald Trump and Jeb Bush at the GOP presidential debate at the Reagan Library. (Max Whittaker, EPA)

The candidates were fired up for the second round of GOP debates, set in the Ronald Reagan Presidential Library in Simi Valley, Calif. Here are some of their best zingers from the night:

CARLY FIORINA

I think women all over this country heard very clearly what Mr. Trump said.

— In response to Donald Trump’s “look at that face” remark in Rolling Stone.

JEB BUSH

Everready. It’s very high energy, Donald.

— What Bush wants as his Secret Service code name.

To subject my wife into the middle of a raucous political conversation was completely inappropriate and I hope you apologize for that.

— In response to Trump’s comment on Bush’s wife and his immigration views.

DONALD TRUMP

Humble.

— What Trump wants as his Secret Service code name.

Your brother gave us Barack Obama.

— In response to Jeb Bush on his family’s legacy.

Rand Paul shouldn’t even be on this stage. He’s number 11.

RAND PAUL

There will always be a Bush or Clinton for you if you want to go back to war in Iraq.

CHRIS CHRISTIE

You’re both successful people, congratulations. You know who’s not successful? The middle class in this country. They could care less about your careers. Let’s stop this childish back and forth.

— In response to Trump and Fiorina on their business track records.

SCOTT WALKER

We don’t need an Apprentice in the White House. We have one right now.

MARCO RUBIO

America is not a planet.

— On climate change.

BOBBY JINDAL

Let’s stop treating Donald Trump like a Republican.

— In response to question about violating the “11th Commandment” prohibiting attacks on fellow Republicans.

LINDSEY GRAHAM

Strom Thurmond had four kids after he was 67. If you’re not willing to do that, we’d better come up with a new legal immigration system.

That’s the first thing I’m going to do as president — we’re going to drink more.

— In reference to sitting down and socializing with political opponents.