Sen. Tim Kaine, Clinton’s running mate, and his wife, Anne Holton, are also releasing 10 years of their returns.

Her running mate, Sen. Tim Kaine of Virginia, is expected to release his returns from the last 10 years, the source added.

HILLARY CLINTON named US Senator Tim Kaine as her running mate on Friday, making a safe choice that will help her present the Democratic ticket as a steady alternative to the unpredictable campaign of Republican presidential rival Donald Trump.

It's that time of the campaign cycle, and now that Hillary Clinton has established herself as the presumptive Democratic nominee, attention is turning to who will join her on the ticket.