Well then they need to do it to support the majority Conservative base and unite the party, if not for more practical reasons. I’m not convinced that $3M can’t help, btw.
On the topic of whether O’Donnell can win in November:
Let’s say 40% of Ds vote and that goes 90% for Coons and 60% of Rs and Is vote - and she gets 60% of those votes - she can win.
http://elections.delaware.gov/reports/e70r2601_20100901.shtml
STATEWIDE [Deleware]
County Democrats Republicans Others Total
Kent 46,208 32,948 26,450 105,606
New Castle 194,504 101,496 92,301 388,301
Sussex 52,026 48,352 27,461 127,839
Statewide 292,738 182,796 146,212 621,746