05:24 - Source: CNN
Exclusive inside Gov. Scott Walker's winnebago

Story highlights

GOP candidate Scott Walker owed between $10,000 and $15,000 on a high-interest Barclays credit card at its highest point

Walker earned $222,899 as governor, according to the report

(CNN) —  

Wisconsin Gov. Scott Walker is holding onto a high-interest credit card from Barclays and paying an interest rate of 27.24%, according to his personal financial disclosure form.

The Walker campaign did not immediately return requests for comment.

According to the Walker form, the card was issued last year and Walker owed between $10,000 and $15,000 on it at its highest point. (Reporting requirements mandate candidates report the largest amount of debt carried on an individual card, or loan, but give them a range to report.)

The interest rate is high by most standards, although Walker does have another card from Bank of America with a similar credit limit but only 11.99 percent interest, according to the form.

The latest Walker disclosure also shows him carrying at least $100,000 in student debt for his two sons, who are attending college.

RELATED: In battle for authenticity, Scott Walker looks to Kohl’s

Among the field of Republican contenders, Walker has one of the most modest personal financial standings. He earned $222,899 as governor – a little more than $145,000 a year – but only holds between $36,000 and $190,000 in investments, according to the report. Former Florida Gov. Jeb Bush is a multimillionaire and frontrunner Donald Trump has famously claimed to be worth $10 billion.

Walker was also advanced $45,000 for his book “Unintimidated,” which later became the name of the super PAC supporting him.

Walker’s personal financial burden has been raised before. A Walker spokeswoman declined comment for a Boston Globe article in April that showed Walker also carried a car loan and a Sears MasterCard.

The car loan and Sears card were not included in the most recent report.

Walker frequently plays up his everyman background on the campaign trail, sharing his affinity for taking advantage of discount opportunities at Kohl’s on the stump.