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After big U.S. Supreme Court win, Montana nonprofit suffers string of losses

By Paul Abowd

Democrat Steve Bullock's gubernatorial win a low point for litigious conservative group.

CPAC activists urged to fight IRS

By Michael Beckel and Julie Patel

Tax agency called a 'cancer' and 'criminal enterprise' at conservative convention.

Nonprofits spend money on campaigns despite benefactors' warnings

By Julie Patel

Despite warning, four nonprofits spent money on 2012 elections.

Transfers allow nonprofits to spend more money on campaigns, experts say

By Julie Patel

Groups move money to maximize amount that can be used to advocate for or against candidates.

Nonprofits' failure to report political activity to IRS raises questions

By Julie Patel

Nonprofits are required to report poltical activity to the IRS — Center finds three that did not and one that underreported.

Next up: 'Citizens United v. IRS'?

By Dave Levinthal

Conservative group promises to 'pull out all the stops' to fight proposed nonprofit regulations.

Corporate cash helps politicians party on

By Michael Beckel

Inauguration, convention-related groups boosted by corporate contributions.

Top U.S. corporations funneled $173 million to political nonprofits

By Michael Beckel

Analysis of company disclosures reveals steady flow of cash from corporations to social welfare organizations, trade associations.

Dow Chemical backed anti-union nonprofit with $2 million donation

By Michael Beckel and Erin Quinn

Nonprofit opposed pro-union ballot measure in Michigan with help of $2 million from chemical giant.

Pulling back the veil on corporate contributions

By Michael Beckel and Erin Quinn

New database pulls back veil on corporate giving to politically active nonprofits and covert ways companies advance their agendas.

Top politics investigations from 2013

By The Center for Public Integrity

In case you missed it, here are some of our favorite politics investigations from 2013.

Negative ads make Peterson 'more inclined' to run

By Michael Beckel

Democratic lawmaker Collin Peterson says a secretive nonprofit's media blitz makes him more likely to seek re-election.

Liberal heavyweight Patriot Majority USA fueled by secret, big-dollar donors

By Julie Patel

A dark money group expected to play defense for Democrats in the upcoming battle for the U.S. Senate should have plenty in its arsenal.

Center thankful for stellar reviews from charity watchdogs

By Bill Buzenberg

Nation's leading nonprofit evaluators give us accountability rankings to be thankful for.

League of Conservation Voters becoming 'dark money' heavyweight

By Michael Beckel

The liberal League of Conservation Voters is fast becoming one of the nation’s strongest 'dark money' forces.

'Dark money' groups give big to similar nonprofits

By Julie Patel

Politically active nonprofits frequently share money with one another while hiding donors, new tax filings show.

Business groups assail political transparency

By Dave Levinthal

Letter from U.S. Chamber, others charge Center for Political Accountability with laying 'disclosure trap' for corporations.

Tea party-aligned FreedomWorks fueled by elite donors

By Michael Beckel

Four unnamed contributors provided most of the $15 million raised last year by the tea party-aligned nonprofit.

Who funds the shadowy nonprofit behind Arizona’s economic development initiatives?

By Nicholas Kusnetz

How Reporter Nicholas Kusnetz attempted to track down supporters of a secretive nonprofit.

CVS backs Michigan Gov. Rick Snyder's NERD Fund

By Michael Beckel

Pharmacy chain's donation to Michigan governor's group offers a rare glimpse into the funding of politically active nonprofits.

Companies disclosing more political spending

By Dave Levinthal

Study: Companies are increasingly volunteering information about their politicking, but 'severe' gaps remain.

Some charities claiming to support veterans spend heavily on overhead instead

By Chad Garland and Andrew Knochel

News21 investigation finds that some charities supposedly supporting veterans actually spending more to keep their program alive.

Top investigations from 2013 that you may have missed

By Sarah Whitmire

We compiled our favorites from the year's investigative work.

Giffords' gun group to return Midler foundation donation

By Michael Beckel

Bette Midler's family foundation broke rule banning charities from giving to super PACs.

IRS fails to release political groups' financial filings

By Ben Wieder and Kytja Weir

Agency fails to explain why normally accessible political disclosures are being withheld.

More corporations revealing 'dark money' donations

By Dave Levinthal

Corporations are still mostly mum about political contributions, but more and more are reporting donations to secretive nonprofits.

Outside money from D.C. groups, Koch brothers gushes into local politics

By Bill Buzenberg

Two investigations this week show how money from out-of-state groups continues to permeate elections.

GOP leadership PACs boost American Future Fund

By Michael Beckel

Republican senators steered donations to a nonprofit group touting their GOP colleague in May.

Trade group to FEC: ‘Corporate funds’ financed campaign ads

By Michael Beckel and Adam Wollner

Direct Selling Association tells FEC it used "corporate funds" to bankroll political ads last year.

State legislators' ties to nonprofit groups prove fertile ground for corruption

By Nicholas Kusnetz

New York scandals reveal corrupt ties between lawmakers, nonprofit groups

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