Rep. Rooney will not run for re-election

Rep. Tom Rooney (R-Fla.) is the latest Republican who will vacate their House seat after this term. The five-term congressman initially supported Marco Rubio in the 2016 campaign, and later endorsed Donald Trump before un-endorsing him following the Access Hollywood tape, the Tampa Bay Times reports. Trump won Rooney's district by 27 points in 2016.

Go deeper: 2018's open House seats