Emails obtained by ABC News sent to Colorado GOP Chairman Steve House tell him to “pray” he makes it to Cleveland, and instructs him to support Trump or “you are done.” One email provided to ABC News tells House to hide his family members.
“All I can say is pray you make it to Cleveland. The fix is in and the American people will eliminate anyone who gets in the way…” the email reads. “It would be in your best interest to take a stand and support the American People and trump [sic] or you are done. Trump goes independent to ride the nation of scum like you. I would be hiding all family members…Just check out social media.”
Additional emails and text messages to House threaten to release all of his personal information and use rather profane and derogatory language.
The main rally, though, is being organized by a group called coloradovotesmatter.org, which is planning a rally outside the State Capitol on Friday afternoon.
Some are concerned about a national trend of violent threats against delegates and party leaders who don't support Trump.
Several delegates in Indiana said they have also been threatened.
"Very spooky, very personal, referencing things about my family," said Tom John, the Indians GOP's 7th District Committee Chairman.
Meanwhile, Trump's ally, Roger Stone, has encouraged people to vent anger at the Republican Convention.
"We will disclose the hotels and the room numbers of those delegates who are directly involved in the steal," said Stone. "We urge you to visit their hotels and find them."
Still, Scottie Nell Hughes, a Trump Campaign Surrogate, said Trump has spoken against violence, and the threats are simply an indication that some people feel their voices aren't being heard.
"That kind of action is completely condemned, but it’s one of those fallouts of unfortunately a very, very traumatic campaign season," said Hughes. "People feel they need to take it into their own hands, or at least that’s how they vocalize it. The good news is nobody has actually acted on that, and I hope they never do.
The Trump campaign has not responded to ABC’s request for comment on the threats to the Colorado GOP Chair or the threats to the delegates in Indiana.