Financier John Delaney rolled out a detailed policy agenda Tuesday, one day before his rival in a key Maryland congressional race, state Sen. Rob Garagiola, appeared poised to unveil a key endorsement.

Delaney and Garagiola are in the midst of a heated Democratic primary contest in the 6th District seat currently held by Rep. Roscoe Bartlett (R), one that was redrawn to include the western portion of Montgomery County and is now considered battleground territory.

Much of the rhetoric between the two Democrats has been negative, focusing on Delaney’s tax returns and Garagiola’s contributions from lobbyists. But on Tuesday, Delaney focused on policy issues, rolling out proposals on “The Five E’s” — Employment, Education, Environment, Energy and Ethics.

Unlike Garagiola, who has a record on a range of policy issues from his years in the Senate, Delaney is new to electoral politics and starting from scratch in some areas, though he has been active in the past on economic development issues. His proposals run the gamut from job training and “green” energy programs to lobbying reform and term limits for members of Congress.

Garagiola’s campaign, meanwhile, announced that it would hold an “Endorsement Meeting” Wednesday with AFSCME Maryland, followed by a news conference with officials from the powerful public employees’ union. The campaign did not say explicitly that it expects to win the endorsement, but it’s hard to imagine the candidate would appear at a news event with union officials if that were not the case.

AFSCME Maryland had not returned a call seeking comment as of this posting.

Garagiola also has the backing of the SEIU and the National Education Association, and he got the endorsements of House Minority Whip Steny Hoyer (D-Md.) and the League of Conservation Voters last week. Delaney has touted the backing of former Montgomery County executive Douglas M. Duncan.