When it comes to raising money, the 10th congressional district race notches among the top 10 highest in the nation.
Opensecrets.org ranked the 10th congressional district contest as the 10th highest in the nation with candidates raising more than $5.5 million.
Incumbent Bob Dold, a Republican has raised $2.8 million and spent $844,000, according to the site.
His challenger, Brad Schneider, a Democrat, raised $1.6 million.
The 10th district -- Mark Kirk's old district -- encompasses the northeast corner of the state, including the North Shore.