Senator Romney tweets regarding Democratic debate

Republican Senator Mitt Romney is mixing it up with one of the Democratic presidential candidates on Twitter following last night's debate.

In a tweet, Romney joked that the reason Senator Bernie Sanders seems so angry is because he has never been able to pass any of his "socialist agenda" in Congress, calling him "all hat, no cattle."

In response, Sanders called out both Romney and President Trump for rigging the economy against the middle class, going on to say 34-million Americans are uninsured.

Sanders ends by asking Romney, "Why doesn't that anger you?"