A source tells WKYT former state auditor Adam Edelen will announce his candidacy for governor Monday.

Edelen will be the latest Democrat to join a crowded primary field, as Kentucky Attorney General Andy Beshear and House Minority Leader Rocky Adkins have officially announced their campaigns. The Kentucky Secretary of State's Office lists Geoff Young as the only candidate who has filed to run for governor.

Louisville businessman Gil Holland is expected to be Edelen's running made.

Edelen was once chief of staff to former Kentucky Governor Steve Beshear, who is the father of the attorney general.

Governor Matt Bevin announced in 2018 he plans to run for re-election, but there are no official GOP candidate filings listed on the Secretary of State's website ahead of the Jan. 29 deadline.