WASHINGTON - Call it domestic housekeeping, a political dotting of "i"s and crossing of "t"s on a checklist for launching punitive military strikes against Syria for last week's chemical weapons attack.
The Obama administration will brief members of Congress on Thursday in a display of consultation intended to fulfill a murky obligation under law and address the inevitable complaints by minority legislators that no one ever talks to them.
Officials including Secretary of State John Kerry, Defense Secretary Chuck Hagel, National Security Adviser Susan Rice, Director of National Intelligence James Clapper and the vice chairman of the Joint Chiefs of Staff will conduct a telephone conference call for legislators dialing in from home districts on Thursday evening, White House spokesman Josh Earnest told reporters.
While informal briefings and phone calls have taken place this week, the latest planned sessions with congressional leaders and others represent an official effort to lobby support while meeting an imprecise obligation under U.S. law.
Does Congress need to give blessing?
The War Powers Resolution passed by Congress in 1973 requires that the president seek consent from Congress before force is used, or within 60 days of the start of hostilities. It also says the president must provide Congress with reports throughout the conflict.
Since 1973, the United States has used military force in Grenada in 1983, Panama in 1989, Iraq in 1991, Haiti in 1994 and Kosovo in 1999. In all those instances, presidents -- both Democrats and Republicans -- sidestepped Congress and committed U.S. military forces without obtaining congressional approval.
Congress did, however, provide President George W. Bush with its approval for the war in Iraq in 2002 and the war in Afghanistan after the September 11, 2001, terror attacks.
Now, House Republicans lead the calls for President Barack Obama to convene a joint session of Congress to lay out his case to the lawmakers and the American people. Some in both parties demand a vote before any military strikes occur.
More than 90 members of Congress, most of them Republican, have signed a letter to the president urging him "to consult and receive authorization" before authorizing any such military action, according to the office of GOP Rep. Scott Rigell of Virginia.
Meanwhile, 54 House Democrats mostly representing the party's progressive wing sent Obama a letter Thursday that said "we strongly urge you to seek an affirmative decision of Congress prior to committing any U.S. military engagement to this complex crisis."
However, others acknowledge the reality that Obama has the authority to order limited attacks on Syria without first asking permission.
McCain: Obama can act without congressional approval
Veteran GOP Sen. John McCain of Arizona expressed the prevailing view when he said Obama should consult with Congress first, but nothing legally required him to get approval before launching missiles at Syria in response to what U.S. officials call a major chemical weapons attack by the regime of President Bashar al-Assad that killed hundreds on August 21.
"No, the president does not have to," McCain told Fox News on Wednesday. "But he is required to consult with Congress, and it would be in his interests to consult with Congress, rather than acting in a unilateral fashion."
Agreeing was GOP Rep. Mike Rogers of Michigan, who chairs the House Intelligence Committee.
"Under the War Powers Act, I don't believe there has to be a vote," Rogers told MSNBC on Thursday. He added that it would be both politically wise and follow the law to have full discussions with Congress, saying: "You have to have these discussions. You have to bring members in. I think the administration is obligated to do that."
So far, the administration has failed to properly meet its obligation to fully consult Congress, Rogers said, describing its efforts as "trying to do it on the cheap."
At the White House, Earnest disagreed, saying the "robust consultations" cover a wide range of information, including classified briefings for some members of Congress.
"It involves some insight into the perspective of our diplomatic partners around the globe," he said. "It involves reading out conversations that the president and others have had with our allies. It involves a review of the options that are available to the president as he considers an appropriate response."
Along with the congressional briefings, the administration is expected to publicly release a declassified intelligence report this week on what happened in Syria. The White House has made clear that the report would come out before any U.S. action occurs.
Meanwhile, key U.S. allies such as Britain, France and Germany insist that U.N. inspectors must complete their assessment of what happened and allow the Security Council to consider their report before any military response occurs.
While the NATO allies joined Washington in condemning the chemical weapons attack