Answer:

pacs

Answer	Crossword Clue
PACS	Fund-raising grs.
PACS	Campaign finance reform targets, briefly
PACS	Groups close to the lobby?

PACS	Campaign funders, for short
PACS	Campaign-backing orgs.
PACS	Pol supporters
PACS	Heavy boots
PACS	"Super" campaign orgs.
PACS	D.C. fund-raiser
PACS	D.C. fundraisers
PACS	Busy orgs. during campaigns

PACS	D.C. influence gps.
PACS	D.C. lobbying orgs.
PACS	Lobbying gps.
PACS	Big donors
PACS	Pols' providers (abbr.)
PACS	Soft money sources, briefly
PACS	D.C. interest groups
PACS	Candidates may have super ones

PACS	Big donors of a sort
PACS	D.C. donors
PACS	Donation-soliciting gps.
PACS	DC lobbyists
PACS	Lobbyists, for short
PACS	Moccasins
PACS	D.C. lobbyists
PACS	Campaign funders, briefly

PACS	Lobbying orgs.
PACS	Congressional contributors
PACS	Fund-raising orgs.
PACS	Campaign contributors: Abbr.
PACS	Snow boots
PACS	Congressional contributors: Abbr.
PACS	D.C. fund-raisers
PACS	Felt boots

PACS	Overshoe liners
PACS	Political orgs.
PACS	Campaign funding orgs.
PACS	DC donors
PACS	Logger's halfboots.