More than half the nation's governors say they oppose letting Syrian refugees into their states, although the final say on this contentious immigration issue will fall to the federal government.

States protesting the admission of refugees range from Alabama and Georgia, to Texas and Arizona, to Michigan and Illinois, to Maine and New Hampshire. Among these 31 states, all but one have Republican governors.

The announcements came after authorities revealed that at least one of the suspects believed to be involved in theParis terrorist attacks entered Europe among the current wave of Syrian refugees. He had falsely identified himself as a Syrian named Ahmad al Muhammad and was allowed to enter Greece in early October.

Paris terror attacks

32 photos: Paris terror attacks

Spectators embrace each other as they stand on the playing field of the Stade de France stadium at the end of a soccer match between France and Germany in Saint-Denis, outside Paris, on November 13.

A body, covered by a sheet, is seen on the sidewalk outside the Bataclan theater.

Rescuers evacuate an injured person on Boulevard des Filles du Calvaire, close to the Bataclan concert hall in central Paris.

Wounded people are evacuated outside the scene of a hostage situation at the Bataclan theater in Paris on November 13.

A medic tends to a wounded man following the attacks near the Boulevard des Filles du Calvaire.

A woman walks past police and firefighters in the Oberkampf area of Paris.

A riot police officer stands by an ambulance near the Bataclan concert hall in central Paris.

Wounded people are evacuated outside the Bataclan concert hall.

Police secure the Stade de France in Saint-Denis, north of Paris, following explosions during the soccer match between France and Germany.

A wounded man is evacuated from the Stade de France  in Saint-Denis, outside Paris.

Spectators gather on the field of the Stade de France after the attacks. Explosions were heard during the soccer match between France and Germany.

French security forces rush in as people are evacuated in the area of Rue Bichat in the 10th District of Paris.

People leave the Stade de France after explosions were heard near the stadium during a  soccer match between France and Germany on Friday. Paris Deputy Mayor Patrick Klugman told CNN President Francois Hollande was at the match and was evacuated at halftime.

Victims lay on the pavement outside a Paris restaurant.

Rescue workers and medics tend to victims at the scene of one of the shootings, a restaurant in the 10th District. Attackers reportedly used AK-47 automatic weapons in separate attacks across Paris, and there were explosions at the Stade de France.

French security forces move people in the area of Rue Bichat in the 10th District. A witness told BFMTV that firefighters were on the scene to treat the injured.

A forensic scientist works near a Paris cafe on Saturday, November 14, following a series of coordinated attacks in Paris the night before that killed scores of people. ISIS has claimed responsibility.

Police are out in force November 14 near La Belle Equipe, one of the sites of the terror attacks.

Forensic police search for evidence inside the Comptoir Voltaire cafe after the attacks.

Shoes and a bloody shirt lie outside the Bataclan concert hall on November 14. Most of the fatalities occurred at the Bataclan in central Paris.

Security forces evacuate people on Rue Oberkampf near the Bataclan concert hall early on November 14.

Medics evacuate an injured woman on Boulevard des Filles du Calvaire near the Bataclan early on November 14.

Police, firefighters and rescue workers secure the area near the Bataclan concert hall on November 14.

A man with blood on his shirt talks on the phone on November 14. He is next to the Bataclan theater, where gunmen shot concertgoers and held hostages until  police raided the building.

Police officers patrol the area around Notre Dame cathedral in Paris on November 14.

Police officers patrol Paris' Saint-German neighborhood on November 14.

Victims of the shooting at the Bataclan concert venue in central Paris are evacuated to receive medical treatment on November 14.

A woman is evacuated from the Bataclan theater early on November 14.

Forensics are working in the street of Paris after the terrorist attack on Friday, November 13.  The words "horror," "massacre" and "war" peppered the front pages of the country's newspapers, conveying the shell-shocked mood.

Rescuers evacuate an injured person near the Stade de France, one of several sites of attacks November 13 in Paris. Thousands of fans were watching a soccer match between France and Germany when the attacks occurred.

A survivor of the terrorist attack in the Bataclan is assisted following terror attacks, November 13. The violence at the Bataclan, which involved a hostage-taking, resulted in the highest number of casualties of all the attacks.

Spectators invade the pitch of the Stade de France stadium after the international friendly soccer match between France and Germany in Saint-Denis.

Spectators embrace each other as they stand on the playing field of the Stade de France stadium at the end of a soccer match between France and Germany in Saint-Denis, outside Paris, on November 13.

A body, covered by a sheet, is seen on the sidewalk outside the Bataclan theater.

Rescuers evacuate an injured person on Boulevard des Filles du Calvaire, close to the Bataclan concert hall in central Paris.

Wounded people are evacuated outside the scene of a hostage situation at the Bataclan theater in Paris on November 13.

A medic tends to a wounded man following the attacks near the Boulevard des Filles du Calvaire.

A woman walks past police and firefighters in the Oberkampf area of Paris.

A riot police officer stands by an ambulance near the Bataclan concert hall in central Paris.

Wounded people are evacuated outside the Bataclan concert hall.

Police secure the Stade de France in Saint-Denis, north of Paris, following explosions during the soccer match between France and Germany.

A wounded man is evacuated from the Stade de France  in Saint-Denis, outside Paris.

Spectators gather on the field of the Stade de France after the attacks. Explosions were heard during the soccer match between France and Germany.

French security forces rush in as people are evacuated in the area of Rue Bichat in the 10th District of Paris.

People leave the Stade de France after explosions were heard near the stadium during a  soccer match between France and Germany on Friday. Paris Deputy Mayor Patrick Klugman told CNN President Francois Hollande was at the match and was evacuated at halftime.

Victims lay on the pavement outside a Paris restaurant.

Rescue workers and medics tend to victims at the scene of one of the shootings, a restaurant in the 10th District. Attackers reportedly used AK-47 automatic weapons in separate attacks across Paris, and there were explosions at the Stade de France.

French security forces move people in the area of Rue Bichat in the 10th District. A witness told BFMTV that firefighters were on the scene to treat the injured.