From the New York Times:

Senator John Cornyn, a Republican member of the Armed Services Committee from Texas, said he believed that it would be necessary to send tens of thousands more troops to Iraq in the short term to stabilize Baghdad and control the sectarian militias that were killing one another and Americans. He said he was gratified to hear Mr. Maliki's claim that his forces would be adequate to the task by the middle of next year, but said he did not think the Iraqi prime minister was being realistic. "I would love to believe it," Mr. Cornyn said in a telephone interview from Texas. "Perhaps it's useful for him to set goals for his own security forces. But it's pretty clear to me that, at least from a logistical standpoint, Iraqi troops will need to receive support from the United States for quite a long time."

From the Christian Science Monitor:

Many Republicans are shifting into defensive mode as they give up control of oversight committees. GOP Rep. Zach Wamp of Tennessee and Sen. Johnny Isakson (R) of Georgia said this week that they are backing Sen. John McCain's plan to boost troop levels by as much as 20,000 in Iraq.