Campaign spending

Crossroads GPS hits North Dakota's Heitkamp with the second round of ads in as many weeks

And, no, it's not Ohio. Would you believe... Massachusetts?

This year's presidential race could be the most expensive ever, and neither President Obama nor his presumed opponent Mitt Romney are expected to accept public financing of their campaigns -- it just wouldn't be enough.

The GOP presidential candidate is looking at having to raise more money to fight off rivals with staying power.

A lack of campaign cash could cost the presidential candidate in Illinois' primary next week.

Wealthy donors who contribute to political campaigns get lots of media attention -- but not nearly as much attention is paid to how that money gets spent.

Rick Santorum, the candidate who has raised the least amount of money, recently won three primaries. Does this mean money doesn't matter as much as we thought?

Conventional wisdom says the candidate who raises the most money is likely to get the most votes. But is that really true?