This press release gets sent around to prospective donors:

Big news – a poll released an hour ago gives us a 3-point lead in Illinois, 44-41. We’ve been on the air in 9 states, and polls show that we’re now leading in 7 of them.
Your grassroots dollars ARE working in places like Pennsylvania, Connecticut and Illinois.
But we’ll lose this momentum in no time if we don’t have enough money. Tonight marks this week’s Thursday deadline. And to keep the fight going in these states through the weekend, we need 1,215 donors to kick in $5 by midnight. Will you help us out with $5 before midnight? We’ll match every dollar and double your impact.
Thanks for doing everything you can to help Democrats win.

Don’t get too overconfident guys – if Michelle Obama keeps campaigning in polling places, Mark Kirk’s worries about voter fraud might come back to bite you.