The suspect left behind letters listing out political demands, which centered on a threat to “destroy or explode everything here in whole America."
The high court did not elaborate on its reasoning for not hearing the case.
Barricades are surrounding the courthouse ahead of Trump's arraignment.
Comey has since deleted the Instagram post he shared Thursday that showed the numbers "86 47" etched in the sand at a beach via seashells. The numbers are perceived as a call to "86" the 47th president, which is used as a call sign for murder.
Joshua Smith was pardoned on the last day of President Trump's first term in office for drug trafficking crimes from more than two decades ago.
"Alina will lead with the same diligence and conviction that has defined her career," Trump wrote, "and she will fight tirelessly to secure a Legal System that is both “Fair and Just” for the wonderful people of New Jersey."
