What are the key differences between the PAC and IAC in terms of their functions and impact on political campaigns?

The key differences between the PAC (Political Action Committee) and IAC (Independent Expenditure Committee) lie in their functions and impact on political campaigns. PACs are organizations that raise and spend money to support or oppose candidates, while IACs are independent groups that can spend unlimited amounts of money on political activities without coordinating with candidates. PACs have contribution limits and disclose their donors, while IACs can receive unlimited contributions and do not have to disclose their donors. Overall, PACs have a more direct influence on candidates, while IACs can have a significant impact through their independent spending.