Section 527: Exempt political organizations

Internal Revenue Code Section 527 offers political organizations tax-exempt
status. A political organization is often a party, committee, fund, or other organization
that is organized and operated mainly to straight earn and straight
accept contributions or devote revenue for an exempt function. An exempt function
is an activity that influences or attempts to influence the choice, nomination,
election, or appointment of any person to any public workplace or
workplace within a political organization.

The political action committee, or PAC, is definitely the most recognized kind of the
political organization.