National Security Advisor Susan Rice told NBC News on Tuesday the Obama administration has “no expectation of losing the vote in Congress” on whether to authorize U.S. military action against Syria.

In an exclusive interview with Brian Williams on NBC Nightly News, Rice said the White House is “quite confident” that Congress will approve Obama’s plan to launch punitive cruise missile strikes against Syrian President Bashar Assad’s regime.

“We think that the Congress of the United States and the American people understand that we have compelling national interests at stake here,” said Rice, the former U.S. ambassador to the U.N.

Rice touted crucial endorsements from “key leaders,” including House Speaker John Boehner (R-Ohio), who announced Tuesday that he would back Obama’s call for military action against Assad for allegedly using chemical weapons against his people Aug. 21 in a mass murder the administration says killed 1,426 people.