Republicans voiced their opposition to a proposal to tax drivers by miles driven over Twitter on Thursday.

"Obama admin idea: tax cars by-the-mile? Now that's ridiculous," former Arkansas Gov. Mike Huckabee (R) tweeted.

Soon after, Sen. Rand Paul (R-Ky.) tweeted that Americans didn't need another tax.  

"Report frm @thehill says #POTUS floats plan to tax cars by the mile. #WeThePeople have been taxed enough already. #GOP," Paul tweeted Thursday afternoon.

Similarly, Rep. Michele Bachmann (R-Minn.) said the proposed tax would "hurt constituents & millions more."

"Taxing drivers per mile driven, a plan floated by President Obama, will hurt my constituents & millions more: #tcot" Rep. Michele Bachmann (R-Minn.) tweeted.

The Republicans' tweets came after the White House disowned a part of an early draft of the Transportation Opportunities Act which proposed a tax based on miles driven.

"This is not a bill supported by the administration," White House spokeswoman Jennifer Psaki said. "This was an early working draft proposal that was never formally circulated within the administration, does not take into account the advice of the president’s senior advisers, economic team or Cabinet officials, and does not represent the views of the president.”

The draft of the act proposed establishing a "study framework that defines the functionality of a mileage-based user fee system and other systems."