The International Olympic Committee is expected to announce the host city for the 2016 Summer Olympics today, according to a Monday article on CNN.com.

Chicago is one of four candidate cities in the mix, along with Tokyo, Rio de Janeiro and Madrid, Spain. President Obama, a former citizen of Chicago, has been in Copenhagen, Denmark — where the IOC is meeting — this week lobbying for the U.S. city's bid to host the games, according to CNN. He is the first U.S. president to attend an IOC vote personally.

President Obama will be joined by first lady Michelle Obama and other administration officials in pitching Chicago to the committee today, according to the article. Leaders from Brazil, Spain and Japan are also expected to make in-person presentations.

Chicago 2016, the organization leading the effort to host the games on U.S. soil, expects a cost of $3.8 billion, which includes an extra fund of $450 million for unexpected increases, according to a Wednesday article on CNNMoney.com. This does not include the bidding process, which is costing about $100 million.

The committee will also be voting on whether to add golf and rugby as official Olympic sports in the 2016 games, according to an Aug. 13 article in Sports Illustrated. However, baseball, softball, karate, roller sports and squash were passed over as possible 2016 additions.