In an interview with CBS News’s Face the Nation, Vance clashed with host Margaret Brennan over issues such as immigration and recent moves by the U.S. Conference of Catholic Bishops.

Here are five takeaways from the interview:

Patience in lowering prices

Brennan pressed Vance on how the Trump administration would bring down grocery prices, a central promise of the GOP leaders’ election campaign. Vance argued that lowering prices wasn’t a simple task, as Trump “can’t undo all of the damage of Joe Biden’s presidency in four days.”

“There have been a number of executive orders that have caused, already, jobs to start coming back into our country, which is a core part of lowering prices. More capital investment, more job creation in our economy, is one of the things that’s going to drive down prices for all consumers, but also raise wages so that people can afford to buy the things that they need,” Vance said.

After Brennan suggested this means prices won’t come down at all, Vance urged patience, saying, “Rome wasn’t built in a day.”

“Donald Trump has already taken multiple executive actions that are going to lower energy prices, and I do believe that means consumers are going to see lower prices at the pump and at the grocery store, but it’s going to take a little bit of time,” he said.

Criticism of US Conference of Catholic Bishops

Brennan pressed Vance on a response to the recent condemnation by the U.S. Conference of Catholic Bishops, specifically the policy of allowing Immigration and Customs Enforcement agents to detain illegal immigrants at schools and churches. Vance responded that it was the government’s duty to remove the threat of violent criminals from the general populace no matter what, but that the criticism left him “heartbroken” as a practicing Catholic.

“I think that the U.S. Conference of Catholic Bishops needs to actually look in the mirror a little bit and recognize that when they receive over $100 million to help resettle illegal immigrants, are they worried about humanitarian concerns? Or are they actually worried about their bottom line? We’re going to enforce immigration law. We’re going to protect the American people,” he said.

“And I believe the U.S. Conference of Catholic Bishops, if they’re worried about the humanitarian costs of immigration enforcement, let them talk about the children who have been sex trafficked because of the wide open border of Joe Biden,” Vance added.

He also said that the U.S. Conference of Bishops has “frankly, not been a good partner in common sense immigration enforcement that the American people voted for,” and hoped they improve.

Hope raids cause ‘chilling effect’ on illegal immigrants

While elaborating on the prospects of ICE raids in schools and churches, Brennan warned that it could have “a knock-on effect — a chilling effect, arguably, to people to not send their kids to school.”

“I desperately hope it has a chilling effect on illegal immigrants coming into our country,” Vance responded.

Rejection of ‘a nation of immigrants’

The credo that the U.S. is a “nation of immigrants” was coined in 1958 by then-Sen. John F. Kennedy, in a book published by the Anti-Defamation League, intended to liberalize the U.S.’s immigration laws. The premise, though widely espoused, has come under criticism from the Right and Left, both of whom argue that it obscures the settler colonial history of the U.S.

Vance echoed the criticism when Brennan pressed him on Trump’s attempt to revoke birthright citizenship.

“It’s a very basic principle in American immigration law, that if you want to become an American citizen, and you’ve done it the right way, and the American people in their collective wisdom have welcomed you into our national community, then you become a citizen. But temporary residents, people who come in here, whether legally or illegally, and don’t plan to stay, their children shouldn’t become American citizens. I don’t know any country that does that, or why we would be different,” Vance argued.

“Well, this is a country founded by immigrants. This is a unique country,” Brennan said while smirking.

“This is a very unique country, and it was founded by some immigrants and some settlers. But just because we were founded by immigrants, doesn’t mean that 240 years later that we have to have the dumbest immigration policy in the world. No country says that temporary visitors — their children will be given complete access to the benefits and blessings of American citizenship,” Vance responded.

Dismissal of Big Tech concerns

Brennan brought up Vance’s past criticisms of Big Tech, contrasting it with several tech moguls’ donations and appearances at Trump’s inauguration. Vance suggested that this didn’t change anything.

“You know who else was at the inauguration was my mom, and a lot of people who just supported the president and fought every single day to get his election,” Vance said.

After a back-and-forth, the vice president reaffirmed his belief that Big Tech has too much power, and should change course.

“We believe, fundamentally, that Big Tech does have too much power, and there are two ways they can go about this. They can either respect Americans’ constitutional rights, they can stop engaging in censorship, and if they don’t, you can be absolutely sure that Donald Trump’s leadership is not going to look too kindly on them,” he said.