Complex sentence: In 2008, Barack Obama received 51.57% of the Whitman County vote, but in 2012, he received 46.9% of the vote, with Mitt Romney winning with a 49.7% plurality.
Split into simpler sentences: In 2008, Barack Obama received 51.57% of the Whitman County vote. In 2012, he received 46.9% of the vote, with Mitt Romney winning with a 49.7% plurality.