Wednesday, December 11, 2013
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Angus King, left, and Charlie Summers
In Virginia, outside groups dumped another $12 million into that state's contentious Senate race and an additional $8 million into Wisconsin's race during that period.
Gonzales, with The Rothenberg Political Report, said organizations may invest that money in new places – such as the tightening Senate race in Pennsylvania – or use it to bolster their campaigns in battleground states.
He said Republicans' loss of Snowe's seat in Maine would likely be offset by Democrats' loss of a seat in Nebraska, where Democratic Sen. Ben Nelson is retiring. But like other observers, Gonzales said Republicans may have a tougher time winning control of the Senate than envisioned a few months ago.
"I think Democrats are certainly more likely to hold on to a majority than Republicans are in taking it over," he said.
Not every outside group appears to be withdrawing from Maine. Americans Elect, a nonprofit supporting King, has not canceled any of its reserved spots through Nov. 5, spokeswoman Ileana Wachtel said Monday.
The Republican group Crossroads GPS was still airing anti-King ads on Monday, although that run may end on Tuesday.
Staff Writer John Richardson contributed to this report.
Washington Bureau Chief Kevin Miller can be contacted at 317-6256 or at: