Among the invited guests, Chambliss; Corker; Graham and McCain have said they will, or will most likely vote for the resolution ordering a U.S. strike on Syria.
The positions of the other seven senators are either unclear, or they’re undecided.
According to The Hill’s Whip List, four GOP senators who were not invited to the dinner have said they intend to vote in favor of military action. They include Sens. Richard BurrRichard BurrDevin Nunes has jeopardized the oversight role of Congress Schumer: Trump must apologize for wiretapping claim Senate panel asks Trump ally Roger Stone to preserve Russia-related records MORE (N.C.), Jeff FlakeJeff FlakeOvernight Regulation: Senate moves to strike Obama-era internet privacy rules Overnight Tech: Senate votes to eliminate Obama internet privacy rules | FCC chief wants to stay out of 'political debate' on fake news | Wikileaks reveals new CIA docs Senate votes to block internet privacy regulations MORE (Ariz.), Johnny IsaksonJohnny IsaksonOvernight Finance: Senators spar over Wall Street at SEC pick's hearing | New CBO score for ObamaCare bill | Agency signs off on Trump DC hotel lease GOP senators offer bill to require spending cuts with debt-limit hikes Schumer to House GOP: 'Turn back before it's too late' MORE (Ga.) and Mark KirkMark KirkObamaCare repeal bill would defund Planned Parenthood Leaked ObamaCare bill would defund Planned Parenthood GOP senator won't vote to defund Planned Parenthood MORE (Ill.).
The Whip List indicates 12 Republican senators who have said they will vote against a strike when the resolution comes before the upper chamber.
While the measure may pass in the Senate, its prospects in the House are unclear.