Donald Trump has narrowed his search for a vice presidential candidate to just seven contenders and has begun requesting information from each. 

Among those in the running are North Dakota Gov. Doug Burgum, Florida's Marco Rubio, Ohio Sen. JD Vance and South Carolina's Tim Scott, according to campaign sources cited by Fox News. 

Florida Rep. Byron Donalds, New York Rep. Elise Stefanik, and Trump's 2016 rival-turned cabinet member Ben Carson were also said to be on the list - a set of seven who will vetted after they fill out the forms, two others said. 

The paperwork sent to each reportedly varies, one of the sources said, as reps for each of the rumored candidates did not respond to requests for comment.

Aides, meanwhile, have cautioned that Trump's list is not concrete and ever-evolving - and that, at the end of the day, the decision will ultimately be up to him.

 'Anyone claiming to know who or when President Trump will choose his VP is lying,' Trump campaign spokesperson Brian Hughes said in a statement.

He quickly added: '[U]nless the person is named Donald J. Trump.' 

The news - first reported by NBC -  comes a week after Trump was found guilty by a jury in Manhattan of 34 counts of falsifying business records in a criminal hush money trial, for which he will be sentenced next month.

Trump, in recent months, has shown hesitance to announce a running mate, after his infamous falling out with former right hand Mike Pence following the insurrection on January 6. 

He has said he may wait until the upcoming Republican National Convention to unveil the right person, which would be in July - just a few days after he is set to be sentence in his criminal case.