Senator Harry Reid has raised $17 million for his re-election - a war chest compared to the few million his Republican opponents have scraped together, but can he outspend his opponents? And who is donating: individuals or big corporations? Does the Supreme Court's decision on looser corporate spending change that?

We're tracking the money for the Nevada races: who's giving, how much, and where it's coming from. And what about donations that don't come in hard green cash? Does it matter if a supporter donates a fancy RV bus or flies candidates in chartered jets? What are the rules and how do they affect this week's primary? Our experts weigh in... and so can you. Leave your comments below.

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Guest-list forthcoming.

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