WASHINGTON — Iraqi lawmaker Mithal al-Alusi, fearing a deal may be worked out to let the accused killer of his sons flee the country, is appealing to President Bush to order his diplomats to assist in the wanted man’s capture.

Mr. Alusi said yesterday that he will hand deliver a letter addressed to Mr. Bush today at the American Embassy in Baghdad, making the case to the commander in chief to order his ambassador in Iraq to help. The ambassador could tell security contractors at the gate of al-Rashid Hotel to allow the Baghdad police to enter the grounds and arrest the wanted man, the Iraqi minister of culture, As’ad Kamal al-Hashemi.

“All of us, we are suffering and waiting for you to stop your employees in Baghdad and outside Baghdad and tell them they have no right to be involved in Iraqi law,” Mr. Alusi said his letter will state.

Mr. Alusi met with President Bush on June 5, 2007, at a conference in Prague devoted to democracy and national security. Mr. Alusi said that at the event, Mr. Bush asked how his wife was handling the murder of his two sons, Ayman and Jamal.

The American Embassy in Baghdad yesterday released a statement denying any involvement in the standoff at al-Rashid Hotel. “In response to reports and allegations involving the warrant for the arrest of Minister of Culture al-Hashemi, the United States Embassy has not been involved or intervened in the situation. The United States has not taken a position on the matter. This issue is for the Government of Iraq to resolve in accordance with the rule of law,” it said.

An embassy spokesman yesterday also made clear by e-mail that Ambassador Ryan Crocker has no control over the security arrangements of al-Rashid Hotel.

Mr. Alusi disputed this view. “The Americans control everything in the Green Zone. They can shut it down and they can open it up,” he said.

Mr. Alusi yesterday held a press conference airing his criticisms, first reported by The New York Sun, that the American Embassy refused his request for assistance with security contractors guarding al-Rashid Hotel compound inside the American protected International Zone in Baghdad. He said that yesterday morning at 6 a.m., Iraqi police again tried to enter the hotel, only to be refused by the contractors guarding the gate.

An Iraqi justice issued on Monday an arrest warrant for Mr. Hashemi for the February 8, 2005, murder of Mr. Alusi’s two sons during an assassination attempt on Mr. Alusi. The warrant was approved by Prime Minister al-Maliki. Though Mr. Hashemi had announced his resignation from his post in May, he was still technically the culture minister, thus making the order the first time a sitting minister in the Iraqi government was wanted for an arrest.

As the Sun reported yesterday, an order for American GIs to accompany the national police on the raid of Mr. Hashemi’s home was overturned in Washington, according to an American officer monitoring the situation.

Because Mr. Hashemi is a member of the Iraq Accordance Front, the Sunni bloc in Parliament, and Mr. Maliki is the leader of the majority Shiite bloc, known as the United Iraqi Alliance, the arrest warrant may scuttle the thin chance Iraqi politicians will reach a political accord before the 2009 national elections.

An administration official yesterday also pointed out that there are Shiite politicians in the Maliki government that have outstanding warrants who have not been apprehended. “It’s like handing out speeding tickets at the Indy 500. There is no way this will not look sectarian,” the official said.

Mr. Alusi said he is worried that as time passes and Mr. Hashemi remains in al-Rashid Hotel he will find a way out of the Green Zone to flee the country. This scenario was floated by the head of Mr. Hashemi’s party, Adnan al-Dulaimi, on the American funded Radio Sawa on Wednesday. “If we move now, we will have him,” Mr. Alusi said. “But if we lose time, he could flee the country. I am more afraid he will leave the Green Zone. I believe his people would kill him to close the file. Everyone will say the Shia have done it, or Alusi will do it. He is dangerous to them because of what he knows.”

Mr. Alusi first came to public attention in America in connection with attending a counterterrorism conference in Israel, for which he received some criticism in Iraq.