The most accurate assessment of how the federal government regulates campaigns and elections from the options provided is:
The federal government regulates campaign donations, television advertisements, and voting rights.
This statement encompasses key areas of federal regulation regarding elections, including the Federal Election Commission (FEC) oversight of campaign finance, regulations on political advertising (such as those governed by the Communications Act and the Bipartisan Campaign Reform Act), and protections of voting rights under legislation like the Voting Rights Act.
The other options are more focused on specific aspects of voting procedures rather than the broader regulatory framework that governs elections and campaigns.