Over the course of a long and bruising campaign, Jeb Bush is also certain to face more questions about how he would be a different President from George W. Bush, the last Republican to serve in the White House - not only on foreign policy but also on domestic issues such as the privatisation of social security and the Wall St bank bailout.
"There's plenty of time for the Bush comparisons that I'm sure you'll find plenty of people want to make," former Pennsylvania senator Rick Santorum, also a likely presidential candidate, told reporters yesterday at the Republican National Committee meeting in Scottsdale, Arizona.
Naturally, Democrats are among those jumping at a chance to compare Jeb Bush to his brother, who left office with dismal approval ratings.
"From the war in Iraq to privatising social security and everywhere in between, the Bush brothers have been in lockstep," said Ben Ray, a spokesman for American Bridge, a Democratic super political action committee. "Just like Jeb said: Till death do them part."
Arizona Democratic Party chairwoman Alexis Tameron said the Bush campaign was "like pitching a sequel to a terrible movie, only worse. But the American people have already written the Yelp review on that one."
Even within the choreographed confines of his own campaign, Bush couldn't escape the comparisons.
Introducing Bush at the Tempe brewery event, a local chamber of commerce official said, "He was the 43rd governor of Florida. Interesting number" - a reference to George W., the 43rd President.
For Jeb Bush, the danger is that his verbal gymnastics over Iraq may lead Republicans to conclude he does not yet have a precise worldview. By contrast, a top Republican rival, Senator Marco Rubio of Florida, laid out a muscular, if nonspecific, foreign policy on Thursday in a speech at the Council on Foreign Relations.
In Tempe, Bush tried to explain his difficulty articulating his views on Iraq as the result of being reluctant to say anything that might suggest he was ungrateful for the sacrifice of the US armed forces and their families during 12 years of war.
"It's very hard for me to say that their lives were lost in vain," Bush said. "In fact, they weren't. We have the greatest military on the face of the earth." He added, "Their sacrifice was worth honouring, not depreciating."
Later, answering questions from reporters, Bush said he had not spoken to his brother in recent days. "I am loyal to him," he said. "I don't think it's necessary to go through every place that I disagree with him."
He called for an increase in the US troop presence in Iraq to help rid it of the "barbaric Islamic threat", saying, "I think we need to re-engage and do it in a more forceful way".
Advisers to rival GOP campaigns said privately that they have been stunned by Bush's inability to effectively parry questions about Iraq - one said Bush was "not ready for prime-time" - considering his brother's legacy has long been considered perhaps his greatest liability in the 2016 race.
Bush contended that in 2008, when his brother was preparing to turn over the White House to Barack Obama, Iraq was stable. "It was fragile, but it was stable," he said.
Last November, George W. Bush told CBS News he thought invading Iraq "was the right decision. My regret is that a violent group of people has risen up again", a reference to Isis (Islamic State).
Jeb Bush has a 21-member team of foreign policy counsellors, including veterans of his father and brother's administrations. Their views on Iraq differ - a contrast of opinions that Bush aides say he welcomes.
The group includes Paul Wolfowitz, a neoconservative who as a deputy defence secretary was a chief architect of the Iraq war and remains a staunch defender.
Another adviser, George W. Bush's former national security adviser Stephen Hadley, conceded in the Washington Post in 2013: "The war went too long and cost too much - in the lives and treasure of Americans, our coalition partners and Iraqis." But Hadley also wrote that the 2007 troop "surge" that sent an additional 30,000 troops to Iraq "turned around a war that we were not winning".
Other prominent members of the second Bush administration who are not directly consulting Jeb Bush have stood by the war. Karl Rove declined in April to apologise for the war when asked to do so by an Iraq war veteran.
Democratic representative Ruben Gallego, of Arizona, a Marine infantry veteran of the Iraq war who represents the Phoenix area, attacked Bush for seeking counsel from "cronies" like Wolfowitz, saying it "more than ever makes me want to question whether he has the right leadership potential to be President".
Pointing to shortcomings at the Department of Veterans Affairs, Gallego said, "We're the ones who still suffer the consequences from the Bush family's mistakes." Washington Post
