Paula and Joey Reed hope Wednesday's summit between the leaders will allow a resolution to nearly two years of detention for their son, Trevor Reed.

"He's being held as a pawn to try and leverage concessions in a political dispute between our two countries in which he has no part, and it's time to let him come home to Texas," the two wrote in a statement obtained first by CNN.

Reed was sentenced to nine years in prison in July 2020 for endangering the "life and health" of Russian police officers in an altercation after a night of drinking.

"Throughout his captivity, Russian authorities have gone out of their way not to provide Trevor with basic health care and given that, the news about Trevor having pain in his lungs has us terribly worried," they wrote.

"For the last 3 weeks, we have respectfully asked the Russian government to allow Trevor to call us and allow the embassy to visit him to no avail, and we'd like to ask President Putin to let us speak to Trevor, restore his access to send and receive letters and for authorities to be completely transparent about whatever minimal care they provided him."

The US Embassy in Moscow has also called for more access to Reed and his medical records.

Reed from both his family and his government immediately cease," he said in a statement.

On duty at Camp David

Joey and Paula Reed believe their son has been targeted because of his military career, which they said included assignments at the Marine barracks in Washington, DC, and Camp David under the Obama administration.

He was also able to record a voice message directly to Biden, which his family shared with CNN ahead of the summit.

"President Biden -- after 30 months of being wrongfully detained by the Russian government, I implore you to bring this appalling case of hostage diplomacy to an end," Whelan said in the recording.

"I remain innocent, no crime of espionage occurred.

Please bring me home to my family and my dog Flora where I belong."

Whelan considers himself a political hostage -- a bargaining chip to be traded for a Russian prisoner in the United States such as Konstantin Yaroshenko, convicted in a drug smuggling conspiracy in 2011 and sentenced to 20 years in prison, or Viktor Bout, a Russian arms dealer dubbed the "Merchant of Death," who was sentenced to 25 years in federal prison in 2012.