Sherrod Brown's 18-year Senate career ended Tuesday after the most expensive non-presidential race in history. Here are four takeaways.

Republican car dealer and blockchain entrepreneur Bernie Moreno defeated Senate Banking Chairman Sherrod Brown in Ohio, ousting the Democratic party’s most prominent populist and putting the GOP on course toward a Senate majority.

After enduring nearly half a billion dollars’ worth of mostly negative ads for months, Ohio voters are set to decide one of the nation's most-watched Senate races.