“The American people deserve to have this decision debated and made in the open with all the facts and arguments laid out for public review and debate, followed by a congressional vote,” he said.

He said if President Obama believes action in Syria must happen, he should immediately call Congress back into session. Members return from August recess Sept. 9.

Sixteen House Democrats have signed on to a letter making the same argument. More than 100 members of Congress have signed the letter spearheaded by Rep. Scott RigellEdward (Scott) Scott RigellGOP rushes to embrace Trump GOP lawmaker appears in Gary Johnson ad Some in GOP say Trump has gone too far MORE (R-Va.).

But Rep. Pete King (R-N.Y.), a former chairman of the House Homeland Security Committee, earlier this week said Obama did not need authorization from Congress to strike Syria.

Obama and Secretary of State John KerryJohn Forbes KerryFeehery: Oprah Dem presidential bid unlikely Dem hopefuls flock to Iowa Change in Iran will only come from its people — not the United States MORE said earlier this week they have been consulting with members who have an interest in the situation.

Defense Secretary Chuck HagelCharles (Chuck) Timothy HagelHagel: Trump is 'an embarrassment' Tax cut complete, hawks push for military increase Pentagon documents hundreds of serious misconduct cases against top brass MORE, National Intelligence Director James Clapper, and National Security Adviser Susan Rice are expected to brief members Thursday evening, according to multiple reports.

Nadler did not make clear in his statement his position on action in Syria if it were to come to a vote.

He voted against the U.S. invasion of Iraq during the George W. Bush administration.