Current Republican U.S. representatives Justin Amash of Cascade Township, Bill Huizenga of Zeeland and Fred Upton of St. Joseph each will serve another two-year term in Congress.

(L - R) Rep. Thomas Massie (R-KY), Sen. Rand Paul (R-KY) and Rep. Justin Amash (R-MI).

U.S. Rep. Justin Amash

Amash of Michigan has won a fourth term in Michigan's 3rd District.

Amash defeated little-known Democrat Douglas Smith in the district, which includes the cities of Grand Rapids and Battle Creek and their suburbs.

The 36-year-old is a self-described "libertarian Republican" who was first elected to Congress with the Tea Party wave in 2010.

A resident of Kent County's Cascade Township, he is a founding member of the House Freedom Caucus, which clashed with House GOP leaders about issues such as defunding Planned Parenthood and fast-track trade authority.

Smith is a sheet metal worker from Belmont who was seeking political office for the first time.

U.S. Rep. Bill Huizenga (R-MI) (3rd L) speaks as Rep. Kevin Yoder (R-KS) (L), Rep. Diane Black (R-TN) (2nd L) and Rep. Pete Sessions (R-TX) listen during a news conference Feb. 7, 2012.

U.S. Rep. Bill Huizenga

Huizenga will serve a fourth term representing his western Michigan district in Congress.

Huizenga won re-election Tuesday over Democrat Dennis Murphy in the 2nd District, which is the most Republican-leaning of the state's 14 congressional seats.

Huizenga is a member of the House Financial Services Committee and co-owns a gravel company.

Murphy works as a quality engineer in the automotive manufacturing industry.

The district includes all or parts of seven counties and stretches west from the Grand Rapids area to Lake Michigan and north from Holland to Ludington.

House Energy and Commerce Committee Chairman Fred Upton (R-MI) heads for House Republican caucus meeting in the basement of the U.S. Capitol October 9, 2015 in Washington, DC.

U.S. Rep. Fred Upton

Upton has won a 16th term in Congress.

The 63-year-old Republican from St. Joseph defeated Democrat Paul Clements and Libertarian Lorence Wenke on Tuesday to keep his 6th District seat.

Upton has been in the House since 1987. He is the chairman of the House Energy and Commerce Committee, which has broad oversight of the American economy, including cars, health care and federal agencies. His grandfather was co-founder of Whirlpool.

Clements is a professor at Western Michigan University.

Wenke is a 77-year-old former Kalamazoo County commissioner. He owns greenhouses in Michigan and Georgia.