As Democrats try to hold the Senate through defending red states, a look at the rise and fall of split Senate outcomes in presidential years.
KEY POINTS FROM THIS ARTICLE
— In the post-World War II era, there have been nearly 200 instances of states voting for one party for president and another for Senate in presidential election years.
— This type of ticket splitting has generally been to the benefit of Democrats, who have been out of the White House for a slight majority of that timespan.
— The split-ticket trend has been declining, but Democrats will want to reverse that to some degree this year.