Is there a limit as too how much money I can donate to a campaign fund? Where do they get all the millio?

I can't believe the millions of dollars that are donated. How much can a person or company contribute to a political fund?Is there a limit as too how much money I can donate to a campaign fund? Where do they get all the millio?
It depends on the places you are donating too. In presidential campaigns an individual cannot donate more than $2500.00. The real problem with donating is the IRS. There are trigger amounts that will notify the IRS. I know that the magic trigger is $10,000.00. If you give anyone more that ten grand at a time they fill out a suspicious activities form on you. As long as you can prove that you earned the money legally, you will be fine. With some organizations, you can leave money for them in a will. So if a millionaire wanted all of his money to go to the World Wildlife Fund, that is a great boost to their annual donations.