By a lot—and those of you talking about how close this race is will want to pay attention to this new metric.

Rossi's campaign is reporting $4.4 million raised in the third quarter, while Murray's campaign said it's still counting, but is expecting to report $3.3 million.

"I am amazed at the level of enthusiasm and support from Washingtonians,” Rossi said in a statement. “Voters across the state are clearly tired of politicians who massively overspend, grow government, and cater to the special interests in Washington, D.C. They are ready for a Senator who will stand up for families and job creators here in Washington State.”