Obama said the coalition could send a message that "the world is united."
Sen. Bill Nelson said Arab nations should "absolutely" pitch in financially.
Deputy national security adviser Tony Blinken cited the doctrine of "collective self-defense."
"Give us the Apaches and F-16s that you have been suspending," Sisi said.
The group will spur public commitments from cities for ambitious emission reductions.
Rouhani said the strikes took place without U.N. or Syrian authorization.
The report was released ahead of the U.N. Climate Summit in New York.
It's the first meeting since the summer war between Israel and Hamas.
“These are two separate matters that will be resolved separately,” Josh Earnest said.
An estimated 100 Americans have traveled to the Middle East and joined terror groups.
“I agree with her, and I would have taken the chance,” Bill Clinton said.
Officials say the Khorasan group may be targeting U.S., The New York Times reported.
The administration said it is "deeply concerned" by the sentence handed down Tuesday.
Officials described Monday night's strikes as successful.
The U.S. hit both ISIS and al Qaeda-affiliated militants in Syria on Monday night.
Eric Holder hailed it as a victory for trying terror suspects in civilian courts.
The estimates use data from August, prior to the ramped-up U.S. intervention.
"We're going to do what's necessary to take the fight to this terrorist group," Obama said.
The Democratic senator has pushed for Obama to seek authorization.
There have been no new Ebola cases in Senegal and Nigeria for weeks.
"If we do nothing to close this loophole, and allow a terrorist to carry out an attack on our...
Senate Republicans warned Secretary of State John Kerry not to make any nuclear concessions to Iran.
The meeting came amid negotiations aimed at reaching a nuclear deal with Tehran.
“The Assad regime must know that it will be held to account," he said.