In case you missed this on Monday, Rasmussen polled two races that are probably must-wins for the GOP if they have any chance of taking back the House of Representatives.

In South Dakota, Rep. Stephanie Herseth-Sandlin, who voted against Obamacare, only leads Republican Secretary of State Chris Johnson 45 to 41 percent. To the north, Rep. Earl Pomeroy, D-N.D., who voted for Obamacare, trails Rick Berg, R, 49 to 45 percent.