Answer :
Final answer:
The Supreme Court ruling in the Citizens United case allowed corporations and unions to spend unlimited sums on campaign advertising, impacting campaign finance laws, super PACs, and sparking debates on money's role in politics.
Explanation:
The ability of corporations and unions to spend unlimited sums of money on campaign advertising since 2010 can be attributed to the Supreme Court ruling in the Citizens United v. Federal Election Commission case. This decision overturned the soft money ban of the Bipartisan Campaign Reform Act, granting corporations and unions the right to spend without restrictions, citing free speech rights.
This ruling has significantly influenced campaign finance laws and spending practices, leading to the emergence of super PACs that can raise and spend unlimited funds independently of candidates or parties.
Furthermore, the decision has sparked debates on the role of money in politics, free speech rights, and the influence of corporate interests in elections.
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