You can make bigots lose so much money by filling out a 1 page form.
Seriously, this should take you less than 30 minutes and I'm going to give you all the links you need to do it.
Here are the rules about 501c3s and political campaign involvement:
Here are the things the Heritage Foundation is in violation of:
public statements of position (verbal or written) made on behalf of the organization in favor of or in opposition to any candidate for public office clearly violate the prohibition against political campaign activity.
[...] voter education or registration activities with evidence of bias that (a) would favor one candidate over another; (b) oppose a candidate in some manner; or (c) have the effect of favoring a candidate or group of candidates, will constitute prohibited participation or intervention.
Here's the IRS page on how to file a complaint about a nonprofit:
Here's a link to the Heritage Foundation's most recent filing with the IRS, which has their address and other info you may want to fill out form 13909:
Here are the bare minimum fields you need to fill out on Form 13909
1. Name: Heritage Foundation
10. Date: the date you downloaded Project 2025 from their website
12. Description of alleged activities: Heritage Foundation is openly supporting political candidate Donald Trump, the Republican Party, and their political stance in direct violation of the Restriction of Political Campaign Intervention. They've published materials on Project 2025, their political agenda, and their support of Republican politicians and partisan policies on their website: www.heritage.org/conservatism/commentary/project-2025
13. Your name (do not make any jokes, use your legal name)
14. Your occupation (you can be as vague as 'unemployed' or 'retail worker' or 'customer service' or whatever the most vague version of your job title is)
15-18. Your address (yes, you should add your address, as this gives you legitimacy. If you're unhoused, put "unhoused" on line 15)
19. Your phone number (if you don't have a phone number put N/A)
20. Check the box for "I am concerned that I might face retaliation or retribution if my identity is disclosed" especially if attaching your name to this makes you nervous.
Instructions on where to email are at the bottom of the first page of the PDF. Save your filled-out form and attach it, along with Project 2025, and send the email. Keep all communication professional.
If enough of us do this, the bureaucrats at the IRS will note the quantity of complaints, making this a higher priority.
Fun Disgusting Fact: the president of the Heritage Foundation, Kevin Roberts, was paid $622,489 in 2022. The next 11 highest ranking employees are all making around $200,000-$300,000 per year. They pour millions into lobbying. The Heritage Foundation can afford to pay taxes. Let's help them lose their tax-exempt status, shall we?
Why do I know this stuff: I work for a non-profit that gives money to other non-profits, so I deal with non-profits daily and regularly read their tax forms and IRS policies.