Former Vice President Mike Pence's commented on the end of Biden's reelection bid on Monday morning, praising the president and pushing for national unity.

"President Joe Biden made the right decision for our country and I thank him for putting the interests of our Nation ahead of his own," Pence wrote in a statement on X.

"After the assassination attempt on President Trump and President Biden's decision to end his campaign, now is a time for leaders in both parties to project calm and send a message of strength and resolve to America's friends and enemies alike that, whatever the state of our politics, the American people are strong and our American military stands ready to defend our freedom and our vital national interests anywhere in the world," Pence said.

He made mo mention of Harris in the post.

-ABC News' Brittany Shepherd

Michigan Gov. Gretchen Whitmer was the final holdout of potential Biden replacements to throw her support behind the vice president.

"Today I am fired up to endorse Kamala Harris for the President of the United States," Whitmer posted to X on Monday.

-ABC News' Isabella Murray

Illinois Gov. JB Pritzker backed Harris on Monday.

"I am proud to endorse Vice President @KamalaHarris for President of the United States," he wrote in a post on X.

Pritzker is one of the final potential Biden replacements to throw is support behind the vice president.

-ABC News' Isabella Murrary

Minnesota Gov. Tim Walz, who is also the co-chair of the DNC's rules committee and the chair of the Democratic Governors Association, voiced his support for Kamala Harris in an X post on Monday.

"Thanks for the call, @KamalaHarris. You have my full support," Walz wrote. "Let's go win this thing."