"i think a lot of people are upset Obama did not attack already as they had hoped so they can go on another round of their phony outrage. "
There were constant cries for Obama to go through Congress, and people were expecting a strike without Congress being involved.
ACLU Urges the President to Obtain Official Congressional Authorization Before Taking Military Action in Syria
WASHINGTON In a letter sent to the White House today, the American Civil Liberties Union urged President Obama to refrain from initiating military action in Syria until Congressional votes have occurred in both chambers, authorizing such use of military force.
While the ACLU does not take a position on whether military force should be used, the organization has consistently insisted, from the war in Vietnam through both wars in Iraq, that Congress give advance authorization for the use of such force.
Before any decisions are made regarding U.S. military action, the president, according to our Constitution, must obtain congressional authorization for use of any military force, said ACLU Washington Legislative Office Director Laura W. Murphy. Mere consultation between the White House and certain congressional leaders does not provide sufficient authority to the president to unilaterally use any military force. Floor debate should commence as soon as possible and certainly no later than the date on which Congress reconvenes.
Use of military force by the administration in Syria in the absence of congressional action would strike at the very heart of the fundamental principle of separation of powers that is at the core of the Constitution, says the letter, signed by Murphy.
- more -
https://www.aclu.org/national-security/aclu-urges-president-obtain-official-congressional-authorization-taking-military
The President is doing exactly that, and apparently that caught some off guard, resulting in them having to move the goal post.
Expect the same if the U.N. Security Council approves.