Jeb Bush gives his brother, former President George W. Bush, a chest bump in a video released by the former Florida governor's presidential campaign on Wednesday. 

The chest bump comes at the end of a video as Jeb Bush thanks his older brother for campaigning on his behalf this week in South Carolina. 
 
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"We do not need someone in the Oval Office who mirrors and inflames our anger and frustration," George W. Bush says in a clip included in the video.
 
"We need someone who can fix the problems that cause our anger and frustration," he adds, casting Jeb Bush as a "serious and thoughtful candidate" whom he likens to his "big, little brother."
 
This is the first week that George W. Bush has hit the campaign trail for his younger brother, after cutting ads on behalf of Jeb Bush's campaign and lending his name to campaign fundraising emails.
 
Jeb Bush is battling for position among several rivals in the Republican presidential field heading into Saturday's primary in South Carolina, where he's averaging 10 percent support