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Since Mitt Romney spoke out against Donald Trump, the Republican presidential front-runner has not been shy about sharing exactly what he thinks about Romney.

Here's a brief sample:

Last night, Romney was a guest on "Jimmy Kimmel Live" and took part in the popular "Mean Tweets" segment.

The 2012 Republican presidential nominee read aloud just what Trump and his supporters are saying about him after his anti-Trump speech and #NeverTrump campaign.

Watch the hilarious "Jimmy Kimmel Live" clip above.

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