Associated Press

OKLAHOMA CITY (AP) — The race for eastern Oklahoma's U.S. House seat is drawing the most attention in this year's primary elections, as Republicans look to take a seat now held by the only Democrat in the state's congressional delegation.

Polls will be open Tuesday from 7 a.m. to 7 p.m.

Six Republicans and three Democrats are running to represent the sprawling 2nd Congressional District, where Democratic U.S. Rep. Dan Boren is stepping down after four terms.

HENRYETTA, Okla. (AP) — The Oklahoma Highway Patrol says an Oklahoma Department of Transportation worker has been killed when a recreational vehicle crashed into the parked ODOT truck he was in on Interstate 40.

Lt. George Brown told reporters that 47-year-old Tim Vandiver died in the collision near Henryetta shortly after noon Monday. Brown says seven people in the RV were injured and are hospitalized in unknown condition.

Brown says the driver of the RV apparently was sleepy and the vehicle drifted off the interstate and crashed into the ODOT truck.

RAMONA, Okla. (AP) — Transportation officials in Oklahoma have shut down northbound lanes of U.S. 75 near Ramona in Washington County after portions of the road buckled.

Oklahoma Department of Transportation spokeswoman Kenna Mitchell says heat in the region likely played a role in the buckling of the asphalt on Monday. The National Weather Service reports temperatures reached 101 degrees in nearby Bartlesville during the day.

BRAGGS, Okla. (AP) — Officials in Braggs say the town is facing a water shortage.

Town Clerk Rebecca Smith says all 416 water customers have been asked to avoid outdoor watering and to not fill their swimming pools. Tulsa television station KOTV reports that the town hopes to open up a shared water line between Fort Braggs and the city of Braggs.

TULSA, Okla. (AP) — A judge has ordered a psychiatric examination for a man charged with shooting two people outside of the Tulsa County courthouse.

Attorneys for Andrew Dennehy requested that the evaluation be conducted July 12, and a judge in Tulsa granted that request last week. Dennehy is charged with shooting with intent to kill and reckless conduct with a firearm in connection with the March 7 shootings. He has pleaded not guilty.

WASHINGTON (AP) — Key parts of Arizona's immigration law have been struck down by the Supreme Court -- but not the provision requiring police to check the immigration status of someone they suspect is in the United States illegally.

Even there, though, the justices said the provision could face additional legal challenges. And while upholding the "show me your papers" requirement for now, the justices took the teeth out of it -- by prohibiting police officers from arresting people on minor immigration charges.

OKLAHOMA CITY (AP) — An Oklahoma City dentist accused of submitting claims for dental services she didn't provide has been charged in federal court with health care fraud.

The Oklahoma Attorney General's office says 44-year-old Robin Lockwood faces one count of health care fraud.

The attorney general says the charges allege Lockwood falsified treatment notes submitted by Ocean Dental for Medicaid reimbursement between July 2007 and December 2010. She is accused of benefiting from the scheme because she received a percentage of the reimbursement for her services.

TULSA, Okla. (AP) — After several weeks of heated campaigning, the two Republicans vying to represent Oklahoma's 1st congressional district are making a last-minute push to convince voters each is the most conservative choice for the job.

Five-term incumbent U.S. Rep. John Sullivan says he's voted 34 times to cut trillions of dollars in spending, fought to preserve thousands of energy industry jobs in Oklahoma and helped his state crack down on illegal immigration.

OKLAHOMA CITY (AP) — The 10th U.S. Circuit Court of Appeals has blocked enforcement of an Environmental Protection Agency plan that would reduce pollution from Oklahoma's coal-fired power plants.

The court on Friday granted a request by the Attorney General Scott Pruitt, Oklahoma Gas and Electric Co. and others for a stay pending a review of the EPA's rule requiring the reduction of sulfur dioxide emissions at four electric generating units.

OKLAHOMA CITY (AP) — A tea party-aligned Edmond pastor seeking to oust a two-term state senator has filed a defamation lawsuit against his opponent and a political action committee that has funded ads critical of his business dealings.

Paul Blair filed the lawsuit Thursday in Oklahoma County District Court against Senator Clark Jolley and the Coalition for Oklahoma's Future, a PAC funded by contributions from some of the state's largest corporations.