Question: Who was president when the region where Waukee High School is located became a state?

full_context: Document 1: Tualatin High School: Tualatin High School is a public high school located in Tualatin, Oregon, United States. Students in grades 9 through 12 attend the school, which is part of the Tigard-Tualatin School District. Opened in 1992, school teams are known as the Timberwolves.
Document 2: Highline Big Picture: Highline Big Picture is a small school in the Highline School District in SeaTac, Washington, that is part of a network of Big Picture schools all over the United States. The high school opened 2005 with 2009 being the first year with a graduating class. At Highline Big Picture the 9th graders are called 101's, 10th graders 201's, 11th graders 301's and 12th graders 401's. Highline Big Picture, as part of the Big Picture Network, practices Learning Through Internships or LTI. On Tuesdays and Thursdays students go to internships in their field of interest. The school currently consists of 120 students. On Mondays, Wednesdays, and Fridays students attend one class a day which contains, at most, 17 students. These classes are called an advisory.
Document 3: Des Moines, Iowa: On September 22, 1851, Des Moines was incorporated as a city; the charter was approved by voters on October 18. In 1857, the name ``Fort Des Moines ''was shortened to`` Des Moines'', and it was designated as the second state capital, previously at Iowa City. Growth was slow during the Civil War period, but the city exploded in size and importance after a railroad link was completed in 1866.
Document 4: History of Texas (1845–1860): The Republic of Texas had formed in 1836, after breaking away from Mexico in the Texas Revolution. The following year, an ambassador from Texas approached the United States about the possibility of becoming an American state. Fearing a war with Mexico, which did not recognize Texas independence, the United States declined the offer. In 1844, James K. Polk was elected the United States president after promising to annex Texas. Before he assumed office, the outgoing president, John Tyler, entered negotiations with Texas. On February 26, 1845, six days before Polk took office, the U.S. Congress approved the annexation. The Texas legislature approved annexation in July 1845 and constructed a state constitution. In October, Texas residents approved the annexation and the new constitution, and Texas was officially inducted into the United States on December 29, 1845.
Document 5: Minnesota: In 1762 the region became part of Spanish Louisiana until 1802. The portion of the state east of the Mississippi River became part of the United States at the end of the American Revolutionary War, when the Second Treaty of Paris was signed. Land west of the Mississippi River was acquired with the Louisiana Purchase, although a portion of the Red River Valley was disputed until the Treaty of 1818. By the late 1700s, the North West Company had established the post of Fort Charlotte at the Lake Superior end of the Grand Portage, until moving 50 miles northeast to Fort William in 1803. In 1805, Zebulon Pike bargained with Native Americans to acquire land at the confluence of the Minnesota and Mississippi rivers. The construction of Fort Snelling followed between 1819 and 1825. Its soldiers built a grist mill and a sawmill at Saint Anthony Falls, the first of the water-powered industries around which the city of Minneapolis later grew. Meanwhile, squatters, government officials, and tourists had settled near the fort. In 1839, the army forced them to move downriver and they settled in the area that became St. Paul. Minnesota Territory was formed on March 3, 1849. The first territorial legislature (held September 2, 1849) was dominated by men from New England or of New England ancestry. Thousands of people had come to build farms and cut timber, and Minnesota became the 32nd U.S. state on May 11, 1858. The founding population was so overwhelmingly of New England origins that the state was dubbed "the New England of the West".
Document 6: History of Idaho: When President Benjamin Harrison signed the law admitting Idaho as a U.S. state on July 3, 1890, the population was 88,548. George L. Shoup became the state's first governor, but resigned after only a few weeks in office to take a seat in the United States Senate.
Document 7: Washington Union High School: Washington Union was one of the few schools in Fresno County that operated as a single school district until becoming unified in 2011 with two feeder schools, American Union Elementary and West Fresno Elementary. In addition to West Fresno and American Union, it is fed by five schools in the area that operate their own elementary and middle schools. The new K-12 district serves over 2,560 students. The school boasts a variety of programs such as: Agriculture, Academic Decathlon, Health-Institute, Music, Construction, Architecture, Advancement Via Individual Determination (AVID), After School Program, Gifted and Talented Education (GATE), Link Crew, Migrant, Safe School Ambassadors and a newly created Criminal Justice Academy.
Document 8: Waukee High School: Waukee High School (also known as Waukee Senior High School) is a three-year public high school in Waukee, Iowa, United States. The school hosts grades 10-12. It is run by the Waukee Community School District. Freshmen attend one of two separate 8/9 schools, Prairieview or Timberline.
Document 9: Iowa: Almost immediately after achieving territorial status, a clamor arose for statehood. On December 28, 1846, Iowa became the 29th state in the Union when President James K. Polk signed Iowa's admission bill into law. Once admitted to the Union, the state's boundary issues resolved, and most of its land purchased from the Indians, Iowa set its direction to development and organized campaigns for settlers and investors, boasting the young frontier state's rich farmlands, fine citizens, free and open society, and good government.
Document 10: Indiana: In order to decrease the threat of Indian raids following the Battle of Tippecanoe, Corydon, a town in the far southern part of Indiana, was named the second capital of the Indiana Territory in May 1813. Two years later, a petition for statehood was approved by the territorial general assembly and sent to Congress. An Enabling Act was passed to provide an election of delegates to write a constitution for Indiana. On June 10, 1816, delegates assembled at Corydon to write the constitution, which was completed in 19 days. President James Madison approved Indiana's admission into the union as the nineteenth state on December 11, 1816. In 1825, the state capital was moved from Corydon to Indianapolis.
Document 11: Montana: Under Territorial Governor Thomas Meagher, Montanans held a constitutional convention in 1866 in a failed bid for statehood. A second constitutional convention was held in Helena in 1884 that produced a constitution ratified 3:1 by Montana citizens in November 1884. For political reasons, Congress did not approve Montana statehood until 1889. Congress approved Montana statehood in February 1889 and President Grover Cleveland signed an omnibus bill granting statehood to Montana, North Dakota, South Dakota and Washington once the appropriate state constitutions were crafted. In July 1889, Montanans convened their third constitutional convention and produced a constitution acceptable by the people and the federal government. On November 8, 1889 President Benjamin Harrison proclaimed Montana the forty-first state in the union. The first state governor was Joseph K. Toole. In the 1880s, Helena (the current state capital) had more millionaires per capita than any other United States city.
Document 12: Ohio: On February 19, 1803, U.S. President Thomas Jefferson signed an act of Congress that approved Ohio's boundaries and constitution. However, Congress had never passed a resolution formally admitting Ohio as the 17th state. The current custom of Congress declaring an official date of statehood did not begin until 1812, with Louisiana's admission as the 18th state. Although no formal resolution of admission was required, when the oversight was discovered in 1953, Ohio congressman George H. Bender introduced a bill in Congress to admit Ohio to the Union retroactive to March 1, 1803, the date on which the Ohio General Assembly first convened. At a special session at the old state capital in Chillicothe, the Ohio state legislature approved a new petition for statehood that was delivered to Washington, D.C. on horseback. On August 7, 1953 (the year of Ohio's 150th anniversary), President Eisenhower signed a congressional joint resolution that officially declared March 1, 1803, the date of Ohio's admittance into the Union.
Document 13: Deer Creek Public Schools: A new middle school is located on NW 234th Street just east of N. May. It is for 7th and 8th grades. The old Middle School is now the Intermediate school for 5th and 6th grades. Deer Creek High School enrolls 1,356 students in grades 9 - 12.
Document 14: Maquoketa Community High School: Maquoketa Community High School is a public high school in Maquoketa, Iowa, United States. It is located at 600 Washington, Maquoketa, Iowa.
Document 15: Iowa High School Athletic Association: Iowa High School Athletic Association Abbreviation IHSAA Legal status Association Purpose Athletic / Educational Headquarters 1605 South Story St. Boone, Iowa 50036, United States Region served Iowa Membership 375 + high schools Official language English Executive Director Richard Wulkow Affiliations National Federation of State High School Associations Staff 17 Website iahsaa.org Remarks (515) 432 - 2011
ground_truth: President James K. Polk
sub_queries: In which state is Waukee High School located? Answer: Iowa
who was president when Iowa became a state Answer: President James K. Polk