On Thursday, Democratic presidential nominee Joe Biden said that he wanted to win the election by a margin that “can not be denied by Trump supporters.”

Thus far, Biden raised $12 million from the vice presidential debate. An estimated 10 million people have already cast their ballots for the November election.

“We can’t just win by a vote. We’ve got to all turn out. We can be better than we’ve seen. We can be what we are — at our best — if we all get out and vote,” Biden said to attendees at his campaign rally in Phoenix.

He also urged those in attendance to send in mail-in ballots as soon as possible.

Biden ended his speech with, “Your voice, through your vote, can overcome every one of the challenges we face.”