Rubio said Russia was targeting non-ISIS rebel groups to prop up Assad.
Tensions between the U.S. and Russian leaders were on full display.
As fighting continues, many are calling for a fundamental review of US strategy.
Trump said the U.S. should let Russia fight ISIS in Syria.
Officials are considering ways to win more recruits.
Redemption will not be gained by indiscriminately committing US troops to Iraq.
The GOP candidate said the U.S. should have left a base in Iraq instead of withdrawing.
Graham criticized Bush for saying that ground troops wouldn't be required.
Some Democrats feel pressure to deliver what could be politically unpopular votes.
What we are doing is not working.
Sen. Tim Kaine (D-Va.) called Iraq's central government a "work in progress."
To make genuine sense of world politics, it is first necessary to look behind the news.
"Let ISIS and Syria fight. And let Russia ... fight ISIS," Trump said.
Obama's remarks were meant to push nations to use diplomacy.
Rep. Devin Nunes said Obama will have to "draw some real red lines in the sand."
Senators want Kerry to make Yazidis and Christians in Iraq eligible for refugee assistance.
Cheney said the world is a "much better place" without Saddam Hussein.
The "knowing what you know now" question is important.
Officials believe the group used a mustard agent against Kurdish fighters in Iraq.
President Obama on Wednesday made a forceful case for congressional approval of his nuclear deal...
Lindsey Graham, with his colorful metaphor, has it backward.
The White House says it has long acknowledged the difficulty of training Syrian rebels.
From the beginning, all determinative behavior in world affairs has been driven by group conflict.
We have a responsibility to help them integrate into society and the labor market.