U.S. Attorney General Merrick Garland weighed on Tuesday's verdict, stating the jury "has fulfilled its civic duty."

"While the state’s prosecution was successful, I know that nothing can fill the void that the loved ones of George Floyd have felt since his death," he said in a statement.

Garland added that the Justice Department's civil rights investigation into Floyd's death is still ongoing.

Attorney Ben Crump shared a video of President Joe Biden's call to the family of George Floyd following the guilty verdict.

"Nothing is going to make it all better, but at least now there is some justice," the president said, as the family gathered around Crump's phone.

"I think of Gianna's comment, 'My daddy is going to change the world, he's going to start to change it now," Biden said, referring to Floyd's young daughter. 

Biden said he and Vice President Kamala Harris have been watching "every second of this," and they were relieved Chauvin was found guilty on all three counts.

"We're going to get a lot more done, we're going to do a lot," Biden said. "We're going to stay at it till we get it done."

To that, Crump said, "Hopefully this is the momentum for the George Floyd Justice in Policing Act to get passed to have you sign!"

"You got it pal, that and a lot more," Biden replied. "This can be our first shot at dealing with genuine systemic racism."

Biden then turned the phone over to Harris.

"I'm just so thankful to the entire family, your courage ... your strength," Harris said.

"This is a day of justice in America," Harris said. "We really do believe that with your leadership and the president that we have in the White House, that we're going to make something good come out of this tragedy, OK?"

"Thank you, Madam Vice President," the family said.

Biden promised to bring the family to the White House on Air Force One "when we do it."

"We're going to hold you to that, President Biden!" Crump shouted.

ABC News' Sarah Kolinovsky contributed to this report.

George Floyd's brother says he's "able to breathe again" after former Minneapolis police officer Derek Chauvin was found guilty on all three counts for Floyd's death."I feel relieved," one of his brothers, Philonise Floyd, said at a Tuesday news conference. "A lot of days I prayed and I hoped and I was speaking everything into existence. I said, 'I have faith that he will be convicted.'"

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U.S. Senate Majority Whip Dick Durbin, who chairs the Judiciary Committee, said in a statement that he plans to hold a hearing on police reform next month, citing the Floyd case.

"The verdict of this jury gives me hope that we can strive for a system of justice in our nation that is applied equally to all," he said in a statement.

"As Chair of the Senate Judiciary Committee, I have the forum and the means to help move our nation nearer to that goal."

-ABC News' Trish Turner