Senate Armed Services Committee Chairman Carl LevinCarl Milton LevinSen. Gillibrand, eyeing 2020 bid, rankles some Democrats The Hill's 12:30 Report Congress needs bipartisanship to fully investigate Russian influence MORE (D-Mich.) on Wednesday said he expects full approval of Gen. David Petraeus to head U.S. forces in Afghanistan before the July 4th congressional recess.

Levin, whose role is critical in moving Petraeus's confirmation through the Senate, said a committee confirmation hearing would happen either Monday or Tuesday — "no later than Tuesday" — and a final vote probably by the end of the week. He noted that Petraeus was just before the committee last week and that he has wide, comfortable bipartisan support.

"I have a high degree of confidence that we can get this done in committee even the same day that we have the hearing," Levin said. "We all know Gen. Petraeus. He was just in front of us a week ago. I don't think there's going to be anybody who wants to hold up a vote... We know him so well, and we all know how essential it is to have continuity in terms of our command in the field."

President Barack ObamaBarack Hussein ObamaOvernight Energy: Dems ask Pruitt to justify first-class travel | Obama EPA chief says reg rollback won't stand | Ex-adviser expects Trump to eventually rejoin Paris accord Overnight Regulation: Trump to take steps to ban bump stocks | Trump eases rules on insurance sold outside of ObamaCare | FCC to officially rescind net neutrality Thursday | Obama EPA chief: Reg rollback won't stand Ex-US ambassador: Mueller is the one who is tough on Russia MORE removed Gen. Stanley McChrystal as the U.S. commander in Afghanistan Wednesday, a day after a Rolling Stone magazine profile which quoted McChrystal repeatedly criticizing administration officials.

Levin said he supported Obama's decision, noting that the differences between McChrystal and other administration officials were based on personalities, not policies.

"But we just simply can't afford distractions of this kind in the middle of a war," he said.

Levin also pushed back against criticism from Sens. John McCainJohn Sidney McCainLawmakers worry about rise of fake video technology Democrats put Dreamers and their party in danger by playing hardball Trump set a good defense budget, but here is how to make it better MORE (R-Ariz.), Joe Lieberman (I-Conn.) and Lindsey GrahamLindsey Olin GrahamCongress punts fight over Dreamers to March Pence tours Rio Grande between US and Mexico GOP looks for Plan B after failure of immigration measures MORE (R-S.C.) over the July 2011 withdrawal date for U.S. troops in Afghanistan. Levin said the withdrawal date was necessary to force Afghan officials to take over their security needs.

"The only way you can get the Afghans to focus on the need to take responsibility for the security of their own country is if they understand, at a leadership level, that this isn't an open-ended commitment," he said.

However, Levin said the withdrawal date is "not etched in stone," and that Obama could always change his mind depending on conditions at the time.