A bipartisan group of senators introduced a resolution Wednesday to end USA military support of Saudi Arabia in Yemen's civil war. When do we say that something is worthy of intervening in and when do we make that determination?
"And it's about who is involved in that decision".
On Thursday, Pentagon spokeswoman Dana White declined to comment directly on the pending legislation, but reiterated USA forces have the necessary authorization to remain in Yemen.
"We believe that, as Congress has not declared war or authorized military force, this conflict (in Yemen) is unconstitutional and unauthorized", Sanders said at a conference.
The forces are coordinating, refueling and providing targeting guidance and intelligence to the Saudi-led coalition in Yemen.
The two said that they would try to move the resolution through the Senate Foreign Relations Committee, but the committee may table it.
"Many Americans are also not aware that United States forces have been actively involved in support of the Saudis in this war, providing intelligence and aerial refuelling of planes, whose bombs have killed thousands of people and made this crisis far worse".
The war has killed more than 10,000 people, displaced more than 2 million and driven Yemen - already the poorest country on the Arabian Peninsula - to the verge of widespread starvation.
As the humanitarian crisis deepens, lawmakers are increasingly questioning support for the Saudis, even as the Trump administration refuses to criticize the kingdom.
The Sanders-Lee Resolution hopes "to invoke the War Powers Resolution to remove USA forces from this illegal war", explained Ruffalo. And while the resolution was passed, it was not implemented.
In November 2017 a similar resolution sponsored by Congressman Ro Khanna was passed.
"Support for this intervention began under a Democratic president and has continued under a Republican president".
The United States is not officially at war in Yemen.
For decades, members of Congress have wrangled with how to restore its war-making powers from a succession of assertive administrations.
President Donald Trump's top military and diplomatic advisers said last October that the administration was not seeking new authority for conducting military operations in the world's hotspots. But recent administrations, through the use of drone strikes and so-called special operators, have expanded the interpretation of when a commander-in-chief can send United States troops overseas. Congress first passed an Authorization to Use Military Force (AUMF), was on September 14, 2001, only three days after the devastating attacks on NY and Washington by Al-Qaeda hijackers.