The Trump administration has yet to decide on the House Republicans' plan to adjust taxes at the border, Secretary of Commerce Wilbur Ross said Wednesday, addressing speculation that he is opposed to the Paul Ryan-backed proposal.

"Neither the administration nor I has yet taken a position on the border adjustable tax," Ross said in an interview on Fox Business. "We're studying it, we're evaluating it, but we've come to no conclusion yet."

Members of Congress and lobbyists have been closely watching for signs that President Trump will endorse the House GOP border adjustment, a critical component of their tax reform plan.

On Tuesday, sometime Trump adviser and television personality Larry Kudlow reported on Twitter that Ross had staked out opposition to the border adjustment in interior White House talks. Ross shot down that rumor through his own Twitter account before Wednesday morning's comments.

Recent tensions within the Republican Party over the border adjustment, which is opposed by retailers and other import-heavy industries that would see imports taxed, have raised questions about whether the party might give up comprehensive tax reform and instead try small measures, such as a standalone corporate tax rate reduction.

On Wednesday, however, Ross suggested that tax reform, passed on a partisan basis through the special procedure known as budget reconciliation, is still the leading option. Reconciliation, he said, is "the process we probably need to get any tax bill through."