List of Barack Obama 2008 presidential campaign staff members

Blue Cross Blue Shield Association (BCBSA) is a federation of 35 separate United States health insurance companies that provide health insurance in the United States to more than 106 million people. It was formed in 1982 from the merger of its two namesake organizations: Blue Cross was founded in 1929 and became the Blue Cross Association in 1960, while Blue Shield emerged in 1939 and the Blue Shield Association was created in 1948. In the healthcare insurance industry, the organization is known as "The Association" and has two offices, one in Chicago and one in Washington, D.C. The main office is in Chicago in the Illinois Center at 225 North Michigan Avenue. The BCBSA claims to control access to the Blue Cross and Blue Shield trademarks and names across the United States and in more than 170 other countries, which it then licenses to the affiliated companies for specific, exclusive geographic service areas. It has affiliated plans in all 50 states, the District of Columbia, and Puerto Rico, as well as licensees offering plans in several foreign countries; it also participates in the nationwide health insurance program for employees of the United States federal government. The BCBSA manages communications between its members and the operating policies required to be a licensee of the trademarks. This permits each BCBSA company to offer nationwide insurance coverage even though it operates only in its designated service area.

The Carbide & Carbon Building is a 37-story, 503 feet (153 m) landmark Art Deco high rise built in 1929, located on Michigan Avenue in Chicago. It was converted to a hotel in 2004.

The Crain Communications Building is a 39-story, 582 foot (177 m) skyscraper located at 150 North Michigan Avenue in downtown Chicago, Illinois. It was also known as the Smurfit–Stone Building and the Stone Container Building. While the building was originally going to be called "One Park Place," it opened as The Associates Center, named after the initial tenant of the building, the Associates Commercial Corp.Construction of the building began in 1983 and was completed in 1984. The building, noted for its unusually slanted facade, was designed by Sheldon Schlegman of A. Epstein and Sons. It has 39 floors of tenant space and the two spires at the top cover the main roof and serve as mechanical rooms for HVAC equipment.

Michigan Plaza is a two-tower office complex in the Chicago Loop area of Chicago, Illinois, United States. The complex is managed and leased by MB Real Estate.The complex consists of the 44-story 205 North Michigan Avenue and the 25-story 225 North Michigan Avenue and was designed by architect Fujikawa Johnson & Associates. The builders were inspired by the works of Ludwig Mies van der Rohe.

The Old Republic Building, at 307 North Michigan Avenue in Chicago, Illinois, was built in 1924. It was designed by architects Vitzthum & Burns. It was listed as a Chicago Landmark in 2010. It was known as the Bell Building until 1956. It was the first high-rise building in its area.

Millennium Station (formerly Randolph Street Terminal; sometimes called Randolph Street station or Randolph/South Water Street station) is a major commuter rail terminal in the Loop (downtown), Chicago. It is the northern terminus of the Metra Electric District to Chicago's southern suburbs, and the western terminus of the South Shore Line to Gary and South Bend, Indiana. Located under Millennium Park, the terminal is a stub-end station and was established in the 1800s by the Illinois Central Railroad (IC) and has gone through several re-configurations. Most recently, it was rebuilt in the early 21st century and is owned by Metra through its operating arm, the Northeast Illinois Regional Commuter Railroad Corporation. Not counting commuters on the South Shore Line, over 18,000 people board Metra trains at Millennium Station each day. During peak periods, trains leave the terminal as frequently as twice a minute. It is the third-busiest train station in Chicago.

Great Central Station, also known as Great Central Depot, was an intercity train station in Chicago, Illinois owned by the Illinois Central Railroad (IC). It opened in 1856 and for a time was the largest building in downtown Chicago. Its passenger depot building was located on Water Street. In offices above the depot the IC had its headquarters, while beyond the depot was the large rail house where eight track lines ran. It was damaged in the Great Chicago Fire of 1871 but remained in operation. The station proved inadequate to handle growing traffic and its original building was demolished in 1893 in favor of the new Central Station further south. Although it continued to receive some traffic, over-time it increasingly became a commuter rail depot. Millennium Station, formerly Randolph Street Terminal, sits on the location.

The Virgin Hotels Chicago (formerly Old Dearborn Bank Building or 203 North Wabash Avenue) is a historic building in the Loop community area of Chicago, Illinois, that has been converted from use as an office building to use as a hotel run via a mobile app-based business model. The 250-room hotel is the first of Richard Branson's Virgin Hotels brand boutique hotels geared toward the female business traveller.

Seventeenth Church of Christ, Scientist, built in 1968, is a modern style Christian Science church building located in The Loop at 55 East Wacker Drive, (at Wabash Avenue) in Chicago, Illinois in the United States. It was designed by noted Chicago-based architect Harry Weese, whose most famous work is the Washington Metro but who is remembered best as the architect who "shaped Chicago’s skyline and the way the city thought about everything from the lakefront to its treasure-trove of historical buildings."Built by Sumner Sollitt Construction Company of concrete in a circular design, the building has no windows in the interior amphitheater. Outside light comes through a skylight at the top of the oculus in the center of the conical roof. Pedestrian entrance to the building is via a bridge over a sunken garden, which Weese said "was for the benefit of the [subterranean] Sunday School, which didn't have any windows" but is lit through the garden by the light from the street level above. The semicircular auditorium which seats 764 is designed so that no seat is more than 54 feet from the Readers' Platform, which is the focal point of all Christian Science church auditoriums. An invisible sound reinforcement system with 350 hidden microphones allows those in attendance at the Wednesday evening testimonial meetings to give testimonies without having to leave their seats. Off street parking is provided by a subterranean parking garage. A feature of the lower lobby is an acrylic painting on canvas entitled "Millenium Garden: Psalm 23,” completed by Chicago artist Anne Farley Gaines in 2001. In 1996, Seventeenth Church received the 25 Year Award of the Chicago Chapter of the American Institute of Architects. In celebration of the 2018 Illinois Bicentennial, the Seventeenth Church of Christ, Scientist was selected as one of the Illinois 200 Great Places by the American Institute of Architects Illinois component (AIA Illinois).

One Prudential Plaza (formerly known as the Prudential Building) is a 41-story structure in Chicago completed in 1955 as the headquarters for Prudential's Mid-America company. It was the first skyscraper built in Chicago since the Great Depression of the 1930s and the Second World War. The plaza, including a second building erected in 1990, is owned by BentleyForbes and a consortium of New York investors, since the Great Recession of the early 21st century.

Mather Tower (later Lincoln Tower, as designated on the Michigan–Wacker Historic District roster; now identified primarily by its address) is a Neo-Gothic, terra cotta-clad high-rise structure in Chicago, Illinois, United States. It is located at 75 East Wacker Drive in the downtown "loop" area, adjacent to the Chicago River. The 521-foot (159 m)-high building is sometimes called "The Inverted Spyglass" by Chicagoans due to its highly unusual design, an 18-story octagonal tower atop a more conventional 24-story rectangular "box." Briefly the tallest building in Chicago at the time of its completion in 1928, it remains the city's most slender high-rise structure at only 100 by 65 feet (30 by 20 m) at its base. The interior space within the upper octagonal spire contains the least square footage per floor of any Chicago skyscraper.It was designed by Herbert Hugh Riddle (1875–1939), the architect of the Chicago Theological Seminary, as headquarters for the Mather Stock Car Company, a builder of rail cars for transporting livestock. Its design was greatly influenced by the pioneering Chicago Zoning Ordinance of 1923, which placed no limit on the height of new buildings as long as the surface area of the structure's uppermost floor did not exceed 25% of its footprint. This resulted in a multitude of tall, slender, "setback" towers, of which the Mather is an extreme and unusual example. The top floor of the octagonal spire has only 280 square feet (26 m2) of floor space.Mather Company's founder, Alonzo Mather (a descendant of Cotton Mather) is said to be responsible for a number of the building's distinctive design features, including the octagonal tower. Initial plans called for construction of a second, identical building on North Michigan Avenue, behind the Mather and connected to it by a ground-floor arcade, but onset of the Great Depression in 1929 forced its cancellation.By the 1990s the building had fallen into significant disrepair. In 2000 the 4-story "cupola" at the top of the building was demolished because of structural deterioration and safety concerns, after chunks of terra cotta began falling from the facade. Damage was sufficiently extensive that consideration was given to dismantling the remaining 17 stories of the octagonal spire as well.In 2000 Masterworks Development Corporation purchased the structure and undertook a complete restoration. In November 2002, the final phase of the project was initiated when a helicopter lifted the steel framework for a new cupola from a river barge to the top of the tower.The lower, rectangular portion of the building currently houses the River Hotel, while the octagonal upper stories are occupied by a branch of the Club Quarters chain of membership corporate accommodations. Mather Tower was designated a Chicago Historic Landmark in 2001, and in 2006 it received a National Preservation Honor Award from the National Trust for Historic Preservation.

The Two Prudential Plaza is a 64-story skyscraper located in the Loop area of Chicago, Illinois, United States. At 995 feet (303 m) tall, it is currently the sixth-tallest building in Chicago and the 28th-tallest in the U.S., being only five feet from 1,000 feet, making it the closest of any building under 1,000. Built in 1990, the building was designed by the firm Loebl Schlossman & Hackl, with Stephen T. Wright as the principal in charge of design. It has been honored with 8 awards, including winning the Best Structure Award from the Structural Engineers Association of Illinois in 1995.