Hoosier Indicator of Grassroots Rebellion?

Indiana Senate: Hill, Ellsworth Trail Three Main GOP Hopefuls This is interesting:

Significantly, Bayh, who had previously been considered a fairly safe bet for reelection, attracted support from just 44% or 45% of voters in any of the match-ups, and incumbents who earn less than 50% of the vote at this stage of a campaign are considered potentially vulnerable. Coats had not yet entered the race.

Evan Bayh was close to toast and would have had to fight hard--something he's not noted for.

Only 21% Say U.S. Government Has Consent of the Governed

I'd say the Tea Party message is mainstream.