Story highlights Chaffetz added his voice to a chorus of Republican lawmakers appealing to Trump to be more transparent

Rep. Sean Duffy also called on Trump to release his tax returns earlier this month

Washington (CNN) Rep. Jason Chaffetz called on Donald Trump Wednesday to "open up (his) kimono" and release his tax returns and medical records.

The Utah Republican and House Oversight Committee chairman added his voice to a chorus of prominent Republican lawmakers appealing to the GOP presidential candidate to be more transparent about his wealth and health.

"If you're going to run and try to become the president of the United States, you're going to have to open up your kimono and show everything, your tax returns, your medical records," Chaffetz told CNN's Jim Sciutto on "The Lead" after he criticized Hillary Clinton for allegedly allowing lines to blur between her family's charity, the Clinton Foundation, and the State Department while she was at its helm.

Chaffetz continued: "You're just going to have to do that, it's too important. So both candidates, Donald Trump and Hillary Clinton, should show both their medical records and tax returns, absolutely."