From the AP:

Democratic Senate candidate Robin Carnahan says she is both excited and concerned about House-passed legislation that would overhaul the nation's health care system.

But Carnahan, who is Missouri's secretary of state, declined to specifically say Tuesday whether she supports the bill.

Rep. Roy Blunt voted against the bill that Democrats narrowly passed last Saturday. Blunt is the frontrunner for the Republican nomination in the 2010 Senate race.

Blunt says the bill could lead to a government takeover of health insurance and higher premiums for consumers.

Carnahan says she has concerns about whether the bill does enough to make health care affordable. But she says she is excited about the debate and calls the House vote an important first step.

The national GOP went to town on Carnahan's latest comments:

“Even for Robin Carnahan, this tap dance does not pass the straight face test," said Amber Wilkerson Marchand, NRSC spokeswoman.

"She’s running to represent Missourians in the U.S. Senate, yet Carnahan is unable or unwilling to articulate her position on one of the most important issues facing the families, seniors, and small businesses in her state."