Questions: In 1858 was selected by the state of Illinois to challenge the Democrat incumbent, Senator Stephen Douglas, running for reelection. Raymond Burr John Brown Abraham Lincoln Maynard Fillmore

The answer is Abraham Lincoln.

Raymond Burr was a 20th-century actor known for his roles in television series such as "Perry Mason" and "Ironside." He was not involved in 19th-century American politics.

John Brown was an abolitionist known for his radical efforts to end slavery, including the raid on Harpers Ferry in 1859. He was not a political candidate in Illinois in 1858.

Abraham Lincoln was selected by the Republican Party in Illinois to challenge the incumbent Democrat, Senator Stephen Douglas, in the 1858 Senate race. This series of debates between Lincoln and Douglas became famous as the Lincoln-Douglas debates.

There is no historical figure named Maynard Fillmore relevant to this context. Millard Fillmore was the 13th President of the United States, but he was not involved in the 1858 Illinois Senate race.