Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: Jeff Flake's retirement  creates a wide open race for Arizona's Senate seat in 2018.
Far-right outsider candidates could also jump in  the race .
WASHINGTON — With  Sen. Flake 's decision to not seek reelection in Arizona next year  the Grand Canyon State's congressional delegation was sent into a frenzy of speculation about who might throw their hat in the ring for what will be a high-profile 2018 race.
 Flake  made the announcement to retire after just one term on Tuesday  citing as a key reason the deterioration of political discourse  much of which  he  attributes to President Donald Trump.

Arizona gears up for a wide open race with Jeff Flake's retirement