Supreme Court nominee Brett Kavanaugh in 2013 asserted that it's a "traditional exercise" of presidential power to ignore laws the White House views as unconstitutional, as he defended the controversial practice of signing statements prevalent in George W. Bush's White House.

The comments could put a renewed focus on Kavanaugh's time serving as White House staff secretary, who had a role in coordinating Bush's statements accompanying legislation he signed into law. Critics contend that the Bush White House abused the use of signing statements to ignore laws passed by Congress, though Bush and his allies said such statements were no different than the practices of other administrations.

Democrats have demanded full access to documents from Kavanaugh's tenure as staff secretary from 2003-2006 as part of his Supreme Court vetting process, citing in part his role over the Bush signing statements. But Senate Judiciary Chairman Chuck Grassley, an Iowa Republican, has rejected those demands, saying they are irrelevant to his nomination and a Democratic attempt to drag out the vetting process, which already includes hundreds of thousands of pages from other aspects of his career.