Nancy Pelosi sat down with The Late Show’s Stephen Colbert to talk about the historic vote Thursday that formalized the impeachment inquiry. The Speaker of the House talked about why the inquiry is so significant:

“The most important thing for the American people to realize is, no one is above the law. Not even the President of the United States.”

“It’s about the constitution. We take an oath to protect and defend the Constitution of the United States, what those people fought for and thank God they made it amendable so we could expand freedom over time and it’s about three co-equal branches of government. We’re honoring our oath of office. We’re there to strengthen the institution which we serve, and if they don’t want to do that, that’s their problem. But it’s interesting because they have been talking process, process, process because they know they can’t really go near the substance issue.”

As for why no Republicans voted yes, Pelosi says that goes against what the GOP has been calling for.

“You would have thought that the Republicans would all vote for it because it gave them more rights than we ever received in any of the other impeachment proceedings.”

Watch the full interview above.