Rep. Cathy McMorris Rodgers at the Republican convention in August. (Mark Wilson / Getty Images)

Rep. Cathy McMorris Rodgers (R-Wash.), who earned plaudits for her delivery of the official GOP response to President Obama's State of the Union address this week, is finding herself targeted by Democrats now.

On Friday, the Democratic Congressional Campaign Committee called on McMorris Rodgers to apologize for a claim in her speech that it says doesn't hold water.

During her address, the House Republican Conference chairwoman cited someone she called "Bette from Spokane," who she said is now paying an additional $700 in monthly health-care premiums since her old plan was canceled because of the new requirements under Obamacare. The local Spokesman-Review reported Thursday that the woman, Bette Grenier, actually had a cheaper insurance option available to her and that she hadn't spoken with McMorris Rodgers's office about her claim, which she initially made in a letter.

"Congresswoman McMorris Rodgers owes the nation an apology for lying in her Republican response to the State of the Union this week, and spreading more misinformation to Americans about their health-care options,” DCCC spokeswoman Emily Bittner said in a statement.

In her speech, McMorris Rodgers said that Grenier "found out ... that her premiums were going up nearly $700 a month" -- a claim Democrats say is misleading because of the cheaper alternative.

According to the Spokesman-Review's reporting, though, that cheaper alternative -- similar to Grenier's previous bare-bones catastrophic coverage plan -- would have still cost Grenier $550 more than that previous plan.

In a response to the DCCC's release, McMorris took to Twitter to accuse the committee of targeting Grenier.