Vicky Hartzler rode a Republican wave in 2010 to stun long-time Democrat Ike Skelton to represent much of central Missouri.
Hartzler held off facing stiff competition Tuesday from Cass County Prosecutor Teresa Hensley to win re-election.
With all 413 precincts reporting, Hartzler had 192,166 votes for 60 percent to Hensley's 113,044 votes for 35 percent.
Both women thanked their tireless supporters. Hensley said she was proud of the campaign she ran and harkened to lines from a famous Lee Ann Womack song.
"I want to thank you for the dance that you gave me this year. And I hope at some point you will join me again on the dance floor. We still have work to do.
Hartzler said she will focus the next two years on improving America's economy and "Obamacare."
"We've got to get this economy going again and we can do it by removing the onerous regulations and lowering our corporate tax rate to make us more competitive and we need to repeal Obamacare and replace it with some common sense health care reform," she said. "So there's some things we can do from a very practical level."
Hartzler derided President Barack Obama's health care reform while saying elected leaders in Washington must come together.
"We've got to work for the American people. That's what this is all about, serving them and moving our country forward. We've got to find that common ground and I believe we can. He says he wants to undue a lot of the onerous regulations. Let's get to talking about the specifics. We can lower our corporate tax rates so we're not the highest in the world."
The 4th Congressional District is a battleground that stretches from the Kansas border to parts of Audrain County.
The Fourth District includes substantial new turf added after Missouri lost one of its nine seats in the U.S. House after population declines. The new terrain includes Boone, Cooper, Howard and Randolph counties and parts of Audrain and Cass counties.
The population center of the district shifted from conservative Jefferson City to progressive Columbia.
Because of this and Hartzler's freshman status, she was considered one of the most vulnerable incumbents in the U.S. House.
LOCAL STORIES:Akin, McCaskill campaign for undecided votersKS ballot initiative asks voters about changing boat tax Missouri voters choice on St. Louis Police Department could affect Kansas City LookingMore>>
Wednesday, June 19 2013 12:42 PM EDT2013-06-19 16:42:14 GMT
Authorities are looking for a missing elderly couple.Garnett Police Chief Kevin Pekarek said Vernon and Goldie Hunt left their home about 6:30 a.m. Monday for Dwight, IL. Vernon is 92 years old and GoldieMore >
Authorities say a missing elderly Kansas couple has been found safe in Michigan.More >
Wednesday, June 19 2013 9:28 AM EDT2013-06-19 13:28:10 GMT
One of Kansas City's most beloved barbecue joints went up in flames early Wednesday morning.Firefighters say the fire started at midnight at Gates Bar-B-Q near North 10th Street and State Avenue.when crewsMore >
One of Kansas City's most beloved barbecue joints went up in flames early Wednesday morning.More >
Wednesday, June 19 2013 1:34 PM EDT2013-06-19 17:34:16 GMT
Authorities are investigating after a person was shot in a car.Police responded to a shooting call at 11 a.m. Wednesday on Interstate 635 near State Avenue.The victims condition is not yet known at thisMore >
Authorities are investigating after a man was shot in a car on Interstate 635.More >
Wednesday, June 19 2013 5:45 AM EDT2013-06-19 09:45:09 GMT
A guerrilla gardener is on the loose in the Westport area, trying to beautify blighted areas once sat barren. Guerrilla gardeners grow plants, herbs and vegetables on public pieces of land that are inMore >
A blighted public area is now being called The Magic Garden after a woman decided to transform a neglected spot near the Westport post office.More >
Wednesday, June 19 2013 1:14 PM EDT2013-06-19 17:14:10 GMT
A Belton woman who sued Vatterott College over its enrollment practices has won a $13 million judgment against the college. Jennifer Kerr, 42, said the enrollment procedures caused her to spend thousandsMore >
A Belton woman who sued Vatterott College over its enrollment practices has won a $13 million judgment against the college.More >
Wednesday, June 19 2013 8:52 AM EDT2013-06-19 12:52:28 GMT
A central Ohio day care worker sprinkled drugs on snacks to get children in her day care to sleep during the day, according to police charges filed Monday that the woman adamantly denies as a misunderstoodMore >
A central Ohio day care worker sprinkled drugs on snacks to get children in her day care to sleep during the day, according to police charges filed Monday that the woman adamantly denies as a misunderstood joke.More >
Wednesday, June 19 2013 9:55 AM EDT2013-06-19 13:55:47 GMT
Former Kansas City Royals great Willie Wilson had to give up his World Series ring when he declared bankruptcy. Now his family, friends and fans are working to get it back. They're using Twitter andMore >
Former Kansas City Royals great Willie Wilson had to give up his World Series ring when he declared bankruptcy. Now his family, friends and fans are working to get it back.More >
Tuesday, June 18 2013 7:06 PM EDT2013-06-18 23:06:25 GMT
Gary Simpson admitted Tuesday that he so badly abused an infant last year that her skull was fractured.Simpson was a friend and live-in nanny to a Johnson County family. He repeatedly abused the then 2/12-month-oldMore >
Gary Simpson admitted Tuesday that he so badly abused an infant last year that her skull was fractured.More >