Brittney Griner's Moscow trial resumes amid calls for U.S. to seek deal

Jailed American basketball star Brittney Griner returns to a Russian court Thursday amid a growing chorus of calls for Washington to do more to secure her release nearly five months after she was arrested on drug charges.

Griner was detained in February at Moscow's Sheremetyevo Airport after vape canisters with cannabis oil allegedly were found in her luggage. She faces up to 10 years in prison if convicted of large-scale transportation of drugs.

The trial of the Phoenix Mercury star and two-time Olympic gold medalist began last week but the second session was adjourned because two scheduled witnesses did not appear. Such delays are not uncommon in Russian courts and her detention has been authorized through Dec. 20, suggesting the proceedings could last months.

It was unclear if Griner would testify Thursday.

Although Griner's supporters initially kept a low profile, calls for the United States to take action spiked after the trial's first day.

The State Department has designated her as wrongfully detained, moving her case under the supervision of its special presidential envoy for hostage affairs, effectively the government's chief hostage negotiator.

However, Washington hasn't made public its strategy in the case and the U.S. may have little leverage with Moscow because of strong animosity due to Russia's military actions in Ukraine. The White House said President Joe Biden called Griner's wife on Wednesday to assure her that he's doing all he can to obtain the athlete's release, as soon as possible. They spoke after Biden read a letter from Griner in which she said she feared she'd never return home.

WATCH l Griner in midst of trial on charges of possessing cannabis oil:

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