(CNN) - Democrat Barack Obama said Thursday he is shocked and saddened by Bhutto's death.
“I am shocked and saddened by the death of Benazir Bhutto in this terrorist atrocity. She was a respected and resilient advocate for the democratic aspirations of the Pakistani people. We join with them in mourning her loss, and stand with them in their quest for democracy and against the terrorists who threaten the common security of the world,” he said.
Check out more reactions here
WASHINGTON (CNN) - Republican Rudy Giuliani said Thursday the "murderers" Bhutto must be "brought to justice."
"The assassination of Benazir Bhutto is a tragic event for Pakistan and for Democracy in Pakistan. Her murderers must be brought to justice and Pakistan must continue the path back to democracy and the rule of law. Her death is a reminder that terrorism anywhere - whether in New York, London, Tel Aviv or Rawalpindi - is an enemy of freedom. We must redouble our efforts to win the Terrorists' War on Us," he said in a statement
Related: Giuliani out with new terrorism ad
Update: Several other candidates have issued reactions
Watch Clinton's reaction to Bhutto's assassination.
WASHINGTON (CNN) - Democrat Hillary Clinton said Thursday she is 'outraged' by the assassination of Bhutto.
"I am profoundly saddened and outraged by the assassination of Benazir Bhutto, a leader of tremendous political and personal courage. I came to know Mrs. Bhutto over many years, during her tenures as Prime Minister and during her years in exile. Mrs. Bhutto's concern for her country, and her family, propelled her to risk her life on behalf of the Pakistani people.
"She returned to Pakistan to fight for democracy despite threats and previous attempts on her life and now she has made the ultimate sacrifice. Her death is a tragedy for her country and a terrible reminder of the work that remains to bring peace, stability, and hope to regions of the globe too often paralyzed by fear, hatred, and violence.
"Let us pray that her legacy will be a brighter, more hopeful future for the people she loved and the country she served. My family and I extend my condolences and deepest sympathies to the victims and their families and to the people of Pakistan," she said."
Read a full compilation of the presidential candidates' reactions here
Watch McCain's reaction to Bhutto's assassination.
WASHINGTON (CNN) - Republican John McCain said Thursday the assassination of Bhutto "underscores yet again the grave dangers we face in the world today:"
“I was deeply saddened today to learn about the death of Pakistani opposition leader Benazir Bhutto. My deepest condolences go out to the family and supporters of this remarkable woman, an individual who paid the ultimate price for her embrace of moderation and rejection of extremism.
“The death of Benazir Bhutto underscores yet again the grave dangers we face in the world today and particularly in countries like Pakistan, where the forces of moderation are arrayed in a fierce battle against those who embrace violent Islamic extremism.
“Given Pakistan's strategic location, the international terrorist groups that operate from its soil, and its nuclear arsenal, the future of that country has deep implications for the security of the United States and its allies. America must stand on the right side of this ongoing struggle.
“In my numerous visits to Pakistan – to Islamabad, to Peshawar, even to the tribal areas of Waziristan – I have seen first hand the many challenges that face the political leadership there, challenges so graphically portrayed by today's tragedy. There are, in Pakistan, brave individuals who seek to lead their country away from extremism and instability and into the light of a better day. America, I believe, must do all we can to support them.”
Watch Romney's reaction to Bhutto's assassination.
(CNN) – Republican Mitt Romney Friday said Bhutto's assasination is "a stark reminder that America must not only stay on high alert, but remain actively engaged across the globe."
"We are still learning the details of today's tragic events in Pakistan, but this is a stark reminder that America must not only stay on high alert, but remain actively engaged across the globe. Pakistan has long been a key part in the war against extremism and radical jihadists. For those who think Iraq is the sole front in the War on Terror, one must look no further than what has happened today. America must show its commitment to stand with all moderate forces across the Islamic world and together face the defining challenge of our generation – the struggle against violent, radical jihadists," he said.
"At this difficult time, our thoughts and prayers go to the family of Benazir Bhutto, and to all the people of Pakistan who are fighting against extremist forces that would commit such heinous acts as the whole world has witnessed today."
Huckabee continues to make paid speeches, his campaign confirms.
DES MOINES, Iowa (CNN) – Even as he runs for president, Mike Huckabee is still getting paid on the speaking circuit, a campaign spokeswoman confirmed Wednesday.
The former Arkansas governor gave two or three speeches in November and plans to give several more in February and March, according to Huckabee spokeswoman Kirsten Fedewa.
Fedewa says Huckabee has not given up his speaking jobs because, unlike other sitting senators or governors or otherwise wealthy candidates, he needs the cash.
“This is how he earns his living, through paid speeches, and being on the speaking circuit is a tried and true tradition among former officials.” Fedewa told CNN.
She did not immediately know what groups he was addressing or who was paying for the speeches.
Huckabee’s decision, to accept paid speeches when he can, first reported by The Politico, does not appear to pose any legal dilemmas for the presidential candidate. It is, however, highly unusual for a White House hopeful to accept money to speak. His fee, according to Fedewa, is up to $25,000 per speech.
She says his practice is not to accept money to speak at churches.
The Cornerstone Church in San Antonio, Texas did give the former preacher $10,000 for delivering a sermon there this past Sunday, but Fedewa says Huckabee donated the money to a church in Little Rock, Arkansas.
–CNN's Dana Bash
CNN's John King assesses the latest developments in the race for the White House.
With only a week to go until the Iowa Caucuses, CNN Chief National Correspondent John King gives his assessment of the presidential race.
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Giuliani is putting 9/11 imagery front-and-center in a new ad.
WASHINGTON (CNN) - Republican Rudy Giuliani’s campaign announced a new television ad Thursday that invokes the former New York City mayor’s connection to the events of September 11, and the tough stance on terrorism that has been a central theme of his presidential run.
In the 30-second spot, titled ‘Freedom,’ Giuliani compares the firefighters he saw at Ground Zero on September 11 to the members of the “greatest generation” that fought in World War II, speaking over still images of both groups.
“And during the day of September 11 living through the things that I saw and observed. Immediately, when I saw people helping each other. I saw the picture of the firefighters putting the flag up at ground zero. I said, these are the children or grandchildren or great-grandchildren of the greatest generation. They have the same resolve. The same understanding,” says Giuliani.
“When you challenge Americans, there’s no country that stands up stronger and better than the United States of America. When you try and take something away from us like freedom, my goodness, Americans are going to be one in resisting you,” he says. “So, the Islamic terrorists would make a terrible mistake if they confuse our democracy for weakness. Our democracy means we disagree with each other, but when you come and try and take away from us our freedom. When you try and come here and kill our people. We’re one and we’re going to stand up to you and we’re going to prevail.”
The spot will air nationally on cable, and in the early-voting primary states of New Hampshire and Florida, beginning Friday.
–CNN’s Rebecca Sinderbrand
Obama's campaign is again fundraising over attacks from independent groups.
(CNN) – For the second time in less than a week, Barack Obama’s campaign is making a pitch for cash based on attacks from independent groups that support Democratic rivals Hillary Clinton and John Edwards.
“Outside groups are in the process of pouring more than $3.2 million into Iowa to support Hillary Clinton and John Edwards,” said Obama campaign manager David Plouffe in a message sent to supporters Thursday.
The e-mail says that a new group – the unnamed Alliance for a New America – is spending “nearly a million dollars of unregulated money” to run “a so-called issue ad in Iowa this week” that promotes the Edwards plan “and prominently features a smiling John Edwards.”
Obama and Edwards spent the weekend sparring over Edwards’ alleged connection to the group through his former aide, Nick Baldick.
It also accuses “Hillary Clinton's friends from Washington” of “spending millions on attacks, including a mailing that misleads voters by falsely disparaging Barack's universal health care plan,” writes Plouffe. “The mailing carefully uses a quote from another candidate and mimics the design of that candidate's mailings - apparently with the hope that Iowans offended by the negativity will think it came from someone else.”
Plouffe was refereeing to a mailing from the American Federation of State, County and Municipal Employees – a union that backs Hillary Clinton’s candidacy – which does not mention that fact in the mail piece attacking Obama, but does prominently feature a negative quote from Edwards.
The three candidates are locked in a tight race for Democratic voters in Iowa in most recent polls, with just a week to go until the state’s caucuses, although one survey earlier this week seemed to show Hillary Clinton pulling away from both Obama and Edwards.
–CNN's Rebecca Sinderbrand
(CNN) - Hillary Clinton’s campaign debuted a new television ad in South Carolina Thursday, a month before that state’s Democratic presidential primary.
The 60-second spot, titled “Stand By Us,” highlights the New York senator’s record on universal health care, including benefits for National Guard and Reserve members, and on Social Security.
“Hillary stood up for universal health care when almost no one else would, and kept standing until almost 6 million kids had coverage. She stood up for seniors by fighting this administration’s plan to head Social Security over to Wall Street and kept standing until Bush backed down,” says the announcer.
“She stood by our National Guard and Reserve and kept standing until every member had access to the health care they deserve. Hillary spent 35 years standing up for people. As President, she’ll stand up for you.”
Hillary Clinton and Barack Obama are locked in a tie for first place among Palmetto State Democrats in most recent polls.
–CNN Political Producer Peter Hamby contributed to this report