WATCH: Biden's HHS Sec: It is 'absolutely the government's business' who is vaccinated and who is not

Xavier Becerra, the federal Secretary of Health and Human Services, was being interviewed on CNN on Monday, insisting that the government has a right to know who has and hasn't been vaccinated.

The interviewer, Brianna Keilar, asked Becerra about a recent tweet by Rep. Dan Crenshaw (R-TX), made in furtherance of civil liberties and an individual's right to privacy:

"How about don’t knock on my door. You’re not my parents. You’re the government. Make the vaccine available, and let people be free to choose. Why is that concept so hard for the left?"

Keilar asked Becerra, "I wonder if you can answer that criticism: 'it's none of the government's business knowing who has or hasn't been vaccinated.' What do you say?"

"Brianna, perhaps we should point out that the federal government's had to spend trillions of dollars to try and keep Americans alive during this pandemic, so it's is absolutely the government's business."

"It is taxpayers' business if we have to continue to spend money to try to keep people from contracting COVID and helping re-open the economy. And so it is our business to try to make sure Americans can prosper, Americans can freely associate and knocking on a door has never been against the law."

"You don't have to answer, but we hope you do because if you haven't been vaccinated, we can help dispel some of those rumors that you heard, and hopefully get you vaccinated."

Kieran then asked if even going door-to-door would be enough, citing Dr. Leana Wen, who said that "Biden needs to get behind proof of vaccination, starting with his own White House events .... it matters for everyone, including the vaccinated."

Becerra responded, "Well, there are any number of ways to try and continue to make progress, and the President has demonstrated that he is open to moving in any direction we can to help Americans get safe, be safe, feel safe."

"And so, we will continue to provide Americans access. We're gonna go where you are, so that you can get vaccinated, and we will do everything that we can."

"And what we've done is allowed the states, through our governors, our mayors, our county supervisors, to determine how best to approach people in their neighborhoods."