Rep. Raul Labrador (R-Idaho), a fast-rising tea party-backed star of the Republican Party, plans to make an announcement Wednesday about his future political plans.

Rep. Raul R. Labrador (R-Idaho) speaks at a Jan. 31 town hall meeting in Meridian, Idaho. (AP)

The second-term congressman said Monday that he would make the announcement, with speculation focused on a potential challenge to Gov. Butch Otter (R), who has announced plans to seek reelection in 2014. Labrador made the announcement during a lengthy interview with the Idaho Statesman on Monday, during which he declined to detail his future plans.

A spokesman for Labrador declined to comment further Tuesday, but forwarded a news release stating that the congressman would announce his plans Wednesday afternoon at the Meridian, Idaho City Hall.

Labrador has been an outspoken voice for similarly-minded conservative Republicans elected to Congress as part of the 2010 tea party wave and quickly burnished a reputation as a “hell no” vote on nearly every spending and fiscal bill considered by the House.

An immigration attorney by training, he's also been active in the months-long campaign to overhaul the nation's immigration laws, but dropped out of the bipartisan "Group of Eight" earlier this year amid disagreements over whether undocumented immigrants would ever have access to certain federal benefits.