Watch Congressional Correspondent Dana Bash report on Sen. Craig's appeal.
WASHINGTON (CNN) - Sen. Larry Craig filed an appeal Monday in his continued legal fight stemming from a bathroom sex sting this summer.
The Idaho Republican wants the Minnesota Court of Appeals to overturn a judge's decision refusing to let him withdraw a guilty plea to misdemeanor charges stemming from his arrest in June.
"From the outset Senator Craig has maintained that he is innocent of any illegal conduct at the Minneapolis airport," Craig's lawyer, Billy Martin, said in a written statement. "Like every other citizen, Senator Craig has the constitutional right to make every effort to clear his name."
Full story: Craig appeals judge's ruling
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Craig is not happy with how the Romney campaign treated him.
WASHINGTON (CNN) – Sen. Larry Craig, the Idaho Republican caught in a Minneapolis bathroom sex sting this summer, said presidential candidate Mitt Romney "threw me under the campaign bus" when news of his arrest came out.
"He not only threw me under his campaign bus, he backed up and ran over me again," Craig told NBC's Matt Lauer in an interview set to air later this week on the "Today" show.
Romney, the former governor of Massachusetts, said Craig's behavior was "disgraceful" and called for Craig's resignation when news of the senator’s arrest came out at the end of August. (Ticker: Romney: Craig has to look at his conscience)
Craig was Romney's Senate liaison before resigning from the campaign.
Romney spokesman Kevin Madden defended the presidential candidate's response. "Governor Romney simply believes that a public office is a public trust," Madden said. "He believes when a public official enters a guilty plea, they have broken that public trust and should step aside for the sake of their constituents."
Related: Sen. Craig says he'll appeal
– CNN's Scott Anderson and Alexander Mooney
Sen. Craig said he will pursue "additional legal options."
WASHINGTON (CNN) - Idaho Sen. Larry Craig said Thursday he will remain in the Senate and study "additional legal options" after a Minnesota judge refused to throw out his August guilty plea stemming from an airport sex sting.
In a statement from his office, the three-term Republican said he was "extremely disappointed" in Thursday's ruling.
"I am innocent of the charges against me. I continue to work with my legal team to explore my additional legal options," he said.
He said the past few weeks have shown that "it is possible for me to work here effectively," and said any replacement appointed by Idaho's governor would not have the seniority and committee assignments "that are valuable to Idaho."
A judge denied Craig's request to withdraw his guilty plea Thursday.
(CNN) - A Minnesota judge has denied Sen. Larry Craig's request to withdraw his guilty plea to a disorderly conduct charge stemming from his arrest in an airport men's room sex sting.
In a 27-page order, Judge Charles Porter found Craig had entered the guilty plea "accurately, voluntarily and intelligently" and it was too late to withdraw his admission. (Read order [PDF])
Craig was arrested in June by Minneapolis-St. Paul International Airport police, who accused him of making sexual overtures in an airport men's room to an undercover male police officer. Craig pleaded guilty to the misdemeanor count in August.
Sen. Larry Craig is seeking to overturn his guilty plea stemming from an airport bathroom sex sting.
WASHINGTON (CNN) - Sen. Larry Craig won't resign from the Senate while awaiting a judge's ruling on his effort to get a guilty plea withdrawn in a restroom sex sting, a source said Wednesday.
A judge in Minnesota was to hear arguments Wednesday afternoon in the case.
The Idaho Republican was arrested June 11 during a police sting in a Minneapolis airport men's room for allegedly making sexual overtures to an undercover male police officer. He entered a written guilty plea to a disorderly conduct charge in August.
Craig had said he would resign from the Senate if he could not get the guilty plea overturned by this Sunday.
A court will hear Craig's attempt Wednesday to overturn his guilty plea.
(CNN) – A Minnesota judge will hear Sen. Larry Craig's petition to overturn his guilty plea on a disorderly conduct charge in Minneapolis on Wednesday.
The Idaho Republican was arrested June 11 during a police sting in an airport men's room for allegedly making sexual overtures to an undercover male police officer. He entered a written guilty plea to the disorderly conduct charge in August.
Craig has said he would resign from the Senate if he cannot get the guilty plea overturned by this Sunday. However, on Tuesday he said he won't resign until "legal determinations" are made. A political source involved in discussions about the case said Craig has made it clear he wants to find a way to stay in office.
A court ruling on Craig's appeal could take longer than the four days left before Craig's original self-imposed deadline.
Sen. Larry Craig, R-Idaho.
WASHINGTON (CNN) - A Minnesota judge will be hearing Sen. Larry Craig's petition to overturn his guilty plea on a disorderly conduct charge in Minneapolis Wednesday, but Craig will not be at the hearing.
"I have been advised not to. I will not be attending," Craig, R-Idaho, told CNN.
He was arrested June 11 during a police sting in an airport men's room for allegedly making sexual overtures to an undercover male police officer. He entered a written guilty plea to the disorderly conduct charge in August.
In his petition to vacate the plea, Craig's attorney maintained the senator's "panic" over the possibility that the allegations would be made public drove him to accept a guilty plea without seeking legal advice and that he had been assured by the arresting officer that the matter would remain private.
A spokeswoman for the 4th Judicial District told CNN the court has not yet gotten any word from the senator's attorneys as to whether he will attend.
The Minnesota prosecutor who handled the disorderly conduct case against Craig said that the Idaho Republican was "calm" and "methodical" as they discussed his entering a guilty plea and that Craig was warned his case would be a matter of public record.
Craig is surrounded by reporters his first day back on the Hill.
WASHINGTON (CNN) - Sen. Larry Craig of Idaho, who made a surprise visit to Capitol Hill Tuesday, directly apologized at a party luncheon to his Senate Republican colleagues "for any embarrassment," a member present at the lunch told CNN.
According to the source, Craig did not address at the lunch whether he plans to stay in Washington beyond September 30 - the date on which he had previously said he would resign.
Asked after the lunch by CNN if he is considering staying in the Senate, Craig said, "We're working on that now."
Sen. Arlen Specter, R-Pennsylvania, who has previously come to Craig's defense, shook hands with the Idaho Republican in front of reporters and told Craig it's "nice to see you smiling."
Later, Specter indicated Senate Republicans may be willing to support Craig if he decides to stay in the Senate.
“There’s been a lot of favorable talk about Larry in the cloak room," Specter told CNN. "And I think the initial shock has worn off."
"He’s been a colleague for a long time – 17 years – you don’t toss over a friend of that duration and intensity easily," Specter added.
Sen. Orrin Hatch, R-Utah, also offered support of Craig, saying, "I don’t think there was any underlying crime."
Hatch also said he thinks that "a good lawyer could win that case.”
– CNN's Jessica Yellin and Ted Barrett
Listen to Craig's exchange with CNN.
WASHINGTON (CNN) - Sen. Larry Craig of Idaho made a surprise appearance Tuesday the U.S. Capitol, his first since the scandal broke last month over allegations he tried to solicit sex from an undercover police officer in a restroom at Minneapolis-St. Paul International Airport.
The Republican senator had a brief exchange with CNN's Ted Barrett at a Capitol entrance:
Barrett: "What brings you back to the Capitol today?"
Craig: "Go to work."
Barrett: "Are you intending to vote today, sir?"
Craig: "That's my plan."
Barrett: "Why decide to come back today?"
Craig: "Because I'm a serving United States Senator from Idaho."
Craig then stepped into the senators' dining room on the first floor of the Capitol. On the way he passed a visibly surprised Sen. Lindsey Graham, R-South Carolina, who gave Craig a big welcome back handshake.
Craig was later asked by reporters if his presence in the Capitol today means he will not resign.
The Idaho Republican responded, " no not at all - I'm here to work with my staff and my office and to work with my legal team."
Asked if he is confident about his court case, he said, "I have no opinion. I'd like to be."
Craig's attorney, Billy Martin, tells CNN how he plans to get Craig's guilty plea withdrawn.
(CNN) – Attorneys for Sen. Larry Craig filed papers Monday to withdraw his guilty plea to a disorderly conduct charge stemming from allegations that he made sexual advances to an undercover police officer in an airport men's room.
Craig's attorney, Billy Martin, said the filing argues that the Idaho Republican suffered a "manifest injustice" at the hands of the police officer who arrested him in a men's room at Minneapolis-St. Paul International Airport in June.
Martin told CNN that Craig wishes that he had sought legal council in the months between his arrest and entering his guilty plea.
TIME.com: The Psychology of Hypocrisy