The American IDEA Act updates and expands federal intellectual property enforcement efforts. The bill reauthorizes the Prioritizing Resources and Organization for Intellectual Property Act of 2008 through 2029 and creates a new grant program to help small businesses, particularly those with annual revenues under $150,000, access free or low-cost legal assistance with protecting their intellectual property. The legislation directs the Attorney General to provide federal grants to law schools, bar associations, legal services organizations, and nonprofits to fund legal aid programs and training for small businesses on intellectual property protection. Additionally, the bill strengthens enforcement efforts against intellectual property theft from countries on the U.S. government's priority watch list and directs two government studies on protecting intellectual property and exploring diplomatic solutions to international IP enforcement challenges. The bill requires federal law enforcement grant recipients focusing on intellectual property crimes to provide matching funds, with slightly higher federal support available for cases targeting countries known for IP theft.