Complex sentence: As Cook County Board Commissioner, Steele voted to uphold a 1.5% 2008 Cook County sales tax increase, remaining the highest in the nation which led the "Chicago Tribune" to encourage voters to vote against him in the 2010 elections.
Split into simpler sentences: As Cook County Board Commissioner, Steele voted to uphold a 1.5% 2008 Cook County sales tax increase, remaining the highest in the nation. As a result the "Chicago Tribune" has encouraged voters to vote against him in the 2010 elections.