From the blog Blue Indiana:
As mentioned here last week the DLCC has been expanding their "Essential Races" targeted list, which now includes three Hoosier Democrats. Here's the skinny:
Indiana House District 46-- Bionca Gambill
Status: Democratic Open Seat
Why this Race Matters: HD-56 is a traditionally-conservative district left open by a well-liked Democratic Representative. This district closely resembles those held by several vulnerable Democratic Representatives, so holding this open seat would be a very good sign for other vulnerable districts. The Democratic majority in the Indiana House is currently the only thing preventing the defeat of three Democratic members of congress through gerrymandering.
Indiana House District 51 -- Codie Ross
Status: Republican Incumbent
Why this Race Matters: The GOP incumbent in this northeast Indiana district has a history of under-performing on Election Day, and his Democratic challenger this cycle is probably the strongest candidate he's ever faced. Picking up this seat would increase House Democrats' narrow margin for error in the chamber.
Indiana House District 72 -- Shane Gibson
Status: Republican Incumbent
Why this Race Matters: Republican Ed Clere won this traditionally Democratic seat by 108 votes in the most shocking Indiana House upset of 2008. Winning it back will provide valuable breathing room for the Democrats' narrow, four-seat majority ahead of redistricting.
http://www.blueindiana.net/diary/4898/essential-races-dlcc-names-three-hoosier-contests-to-targeted-list