Many lawmakers up for re-election are distancing themselves from their unpopular executive leader. But that may not be enough to win.
Several Republican governors have actively campaigned against lawmakers in their own party this year -- in most cases, only to see their efforts backfire.
These are the districts in each competitive state that could decide November's presidential election.
Most of the state's governors over the past 40 years weren't elected by a majority. Now voters have the option to switch to a new method of electing their leaders.