Trump Impeachment Trial Tests Incumbents Key to Senate Control.

(Bloomberg) -- The Senate's historic impeachment trial of President Donald Trump will be especially momentous for a small group of vulnerable incumbent senators whose 2020 re-election bids are central to determining control of the chamber. Democrats need a net gain of four seats to snag a Senate majority if Trump wins re-election, and three if they win the White House. But Democrats see her 2018 vote to confirm Brett Kavanaugh to the U.S. Supreme Court and a possible vote to acquit Trump as significant ammunition against her. [Extracted from the article]