VIEWER GUIDE: Convention to show GOP's love-hate for Trump

"Don't tell me it can't be done", Loomis said.

"Everyone has an important role to play in that renewal", said Kasich, who called law enforcement "a noble, essential calling". In the chaotic aftermath of the Dallas shooting earlier this month, which left five police officers dead and six injured, a protester carrying an unloaded assault rifle was misidentified by media and law enforcement as a suspect.

The union's president, Steve Loomis, said lawyers are putting the request together and will send it to the governor's office, according to FOX8.

Quicken Loans Arena is decorated to welcome the Republican National Convention on July 11, 2016, in Cleveland.

State law in OH allows for licensed firearm owners to wear their weapons in public. The bonds between communities and our police must be reset and rebuilt-as we're doing in Ohio-so our communities and officers can both be safe.

Political conventions tend to be a bit of a security nightmare at the best of times, and since presumptive Republican nominee Donald Trump has attracted protests and violence at his past events, Cleveland police are taking all the precautions they can.

Ohio's open-carry laws could make it hard for authorities to determine who does and doesn't pose a security threat at the RNC.

Citizens for Trump is scheduled to hold a rally expected to attract more than a thousand people to Settler's Landing Park, less than a mile from where Republican delegates will be gathering at the Quicken Loans Arena.

"Let's be clear: these kinds of vicious attacks on police officers will only serve to drive a wedge and destroy the very fabric of our society", the governor said.

He expects the letter - making recommendations against the state's open carry law - to be completed today.

"We're also in a pretty good position here on the lake".

"I don't care what the legal precedent is, I feel strongly that leadership needs to stand up and defend these police officers", Steve Loomis, the head of the Cleveland Police Patrolmen's Association, told Reuters in an interview at the union's headquarters on Sunday.

Cleveland Police Chief Calvin Williams says it seems "everyone is coming" to the city to exercise their First Amendment rights.

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