Republican presidential candidate Donald Trump waves as he gets into his vehicle in Washington, Thursday, March 31, 2016, following a meeting at the Republican National Committee. (AP Photo/Susan Walsh)
Republican presidential candidate Donald Trump waves as he gets into his vehicle in Washington, Thursday, March 31, 2016, following a meeting at the Republican National Committee. (AP Photo/Susan Walsh) Credit: ap photograph

Appleton, Wis. — It was a question sure to come up at some point in the Republican primary campaign.

“What should the law be on abortion?” asked MSNBC’s Chris Matthews to Donald Trump at a town hall event in Wisconsin.

“Should the woman be punished for having an abortion?” Matthews pressed. “This is not something you can dodge.”

Trump’s bungled response — an awkward, extended attempt to evade the question, followed by an answer that, yes, “there has to be some form of punishment” — prompted a backlash that managed to unite abortion rights activists and opponents. And it also brought an unprecedented reversal from the notoriously unapologetic candidate less than a week before Wisconsin’s important primary.

The episode demonstrated the extent to which Trump has glossed over the rigorous policy preparation that is fundamental to most presidential campaigns, underscoring the risks of the billionaire businessman’s winging-it approach as he inches closer to the Republican nomination.

“Well, bear in mind I don’t believe that he was warned that that question was coming” and didn’t have a chance to really think about it, said Ben Carson, a former Trump rival who has since endorsed him, in an interview with CNN.

He should have, said political professionals.

“When you’re just winging it, that’s what happens,” said Kevin Madden, a veteran of 2012 nominee Mitt Romney’s campaign. “Running for president, it’s not a take-home exam.”

And this wasn’t the first time Trump’s approach has gotten him in trouble.

He raised eyebrows during a debate when he appeared unfamiliar with the concept of the nuclear triad, an oversight his opponents happily pointed out.

At a town hall on CNN earlier this week, Trump appeared to falter when asked to name what he believed were the top three priorities of the federal government. Among his answers: health care and education. Trump has vowed to repeal President Obama’s landmark health care law and gut the budget of the Department of Education.

During a recent rally in Vienna, Ohio, Trump delivered his usual indictment of the North American Free Trade Agreement and blasted American companies that have shipped jobs overseas.

But he seemed unaware that Chevrolet, which builds the Chevy Cruze sedan in nearby Lordstown, had recently announced that it was planning to build its 2017 hatchback model in Mexico.

Who does he consult on foreign policy?

“I’m speaking with myself, number one, because I have a very good brain and I’ve said a lot of things,” Trump said on MSNBC this month. He’s also said he gets information about international affairs from “the shows” and newspapers.