On Sunday night Huntsman announced that he was dropping out of the presidential race and endorsing Romney, his former rival. 

Huntsman had regularly criticized the former Massachusetts governor throughout his campaign, a fact Democrats quickly seized on. Shortly after the news broke, the Democratic National Committee sent out an email highlighting criticisms Huntsman made of Romney. 

In one instance, Huntsman said Romney had switched positions so much that his policy stances are similar to a "perfectly lubricated weather vane."

"While the Huntsman campaign tries to rewrite history, let us remind you of some of Jon Huntsman's greatest hits against Mitt Romney," the email read.