The move follows increased violence and targeted U.S. airstrikes.
A three-day cease-fire in Gaza between Israel and Hamas ended Friday morning.
“Escalating it is not in the cards,” the Illinois Democrat said.
“That’s not going to solve the problem," the Democrat said.
The South Carolina Republican accused the president of ignoring his national security team.
Even action taken under the auspices of humanitarian support would be viewed as a violation.
The ruling will prevent the Islamist group from participating in parliamentary elections.
Obama said operations authorized in Iraq would protect refugees trapped on Sinjar Mountain.
The White House urged Israelis and Hamas to resume a ceasefire shortly after it expired.
Rubio says its ideology will lead it to attack U.S. allies.
Officials would not confirm if the U.S. asked other countries to join in airstrikes.
Rep. Colleen Hanabusa (D-Hawaii) criticized President Obama’s decision to conduct airstrikes on...
"There’s no doubt in my mind that Hamas initiated this conflict," she said.
“We should take nothing off the table," said the former Homeland Security chairman said.
“I think these targeted strikes are very effective,” Sen. Jack Reed said.
"This is the moment" for Obama to exercise leadership, Zalmay Khalilzad said.
McCain said targeted airstrikes and humanitarian aid are "far from sufficient."
“America is proud to act alongside our closest friends and allies,” President Obama said.
Young Americans are showing far less fervent support for Israel than older generations.
"We can’t count on our government to just tell us the truth," he said.
Rep. Frank Wolf (R-Va.) on Friday urged the Obama administration to ramp up its efforts to help...
Officials reached out to appropriators, but don't need emergency funding "at this point."
Strikes should be authorized if they are ongoing when lawmakers return in September.
Jordan, a key U.S. ally, has resisted efforts from ISIS to advance on its territory.