But not as many as Abraham Lincoln.
How many did Lincoln lose? He served in the state house for 8 years, congress for 2 terms and won president twice too.
Burris was an unsuccessful candidate for the Democratic nomination for U.S. Senate in 1984
In 1994, he was an unsuccessful candidate for the Democratic nomination for Governor of Illinois
In 1995, he ran for mayor of Chicago, losing to incumbent Richard M. Daley
In 1998 and 2002, he again unsuccessfully sought the Democratic Party nomination for Governor of Illinois.