U.S. Sen. Ron Johnson has become the first Republican senator to officially oppose a GOP plan to overhaul the federal tax code, imperiling efforts to speedily pass it through a Senate where Republicans hold a narrow 52-48 majority.

Meanwhile, passage of a similar bill seemed certain Thursday in the House, where a handful of dissidents conceded they expected to be steamrolled by a GOP frantic to claim its first major legislative victory of the year.

Johnson, R-Wisconsin, announced his opposition to the plan in an interview published Wednesday in the Wall Street Journal. He protested what he called the Senate proposal’s unfavorable tax treatment of “pass-through” entities, many of which are small businesses, relative to large corporations, to which it would give a large tax cut.

Read more in the Wisconsin State Journal.

WBA's web page on 2017 Tax Reform.