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The Wall Street-centric attack could be an attempt to build on the momentum of the "Occupy Wall Street" protests, which are garnering more and more national media attention to a group that blames corporate excesses for the country's economic difficulties. While some have dubbed the group the "Tea Party of the left" and many Democrats have cautiously embraced the movement, many Republicans, including House Majority Leader Eric CantorEric CantorA path forward on infrastructure Democrats step up calls that Russian hack was act of war Paul replaces Cruz as GOP agitator MORE (R-Va.), have likened them to riotous mobs.

House Majority PAC, which supports Democratic House candidates, has raised $2.1 million since it was formed in April and spent $1.3 million, as of the end of September.

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