Final answer:
The Supreme Court decision in Buckley v. Valeo aided Ross Perot's presidential bid by allowing individuals and organizations to spend unlimited amounts on independent campaign expenditures.
Step-by-step explanation:
In Buckley v. Valeo (1976), the Supreme Court upheld Congress's right to regulate elections by restricting contributions to campaigns and candidates. However, at the same time, it overturned restrictions on expenditures by candidates and their families, as well as total expenditures by campaigns.
This decision allowed individuals and organizations to spend unlimited amounts on independent campaign expenditures, therefore aiding Ross Perot's presidential bid in 1992.