GOP frontrunner Donald Trump’s ally Roger Stone threatened to reveal the hotel locations of delegates who steal the nomination from Trump at a contested convention.

“We’re going to have protests, demonstrations. We will disclose the hotels and the room numbers of those delegates who are directly involved in the steal,” Stone stated in a radio interview.

“If you’re from Pennsylvania, we’ll tell you who the culprits are,” Stone threatened. “We urge you to visit their hotel and find them. You have a right to discuss this, if you voted in the Pennsylvania primary, for example, and your votes are being disallowed.”

Stone, who was previously banned from CNN, is now reportedly banned from MSNBC.