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].
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Question: 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.

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


Question: This weekend's bloodshed broke out Sunday in the southern port city of Aden  where forces loyal to the separatist Southern Transitional Council traded gunfire with loyalists of  President Abed Rabbo Mansour Hadi . The scattered fighting has claimed at least 12 lives and injured scores more.
The two sides had shared an uneasy alliance since 2014  when they were united in their opposition to the Houthi rebels who seized cities in the country's northwest  including the capital  Sanaa. Together  the STC and  Hadi 's forces managed to repel the Houthis from Yemen's southern governates and Aden  the large city where Hadi's government had presided since its ouster from the capital.
As Reuters notes  the fighting follows the expiration of a deadline set last week by the southern separatists. Irate at what they call corruption and the deep erosion of public services in the areas still governed by Hadi  the STC had delivered him an ultimatum: shake up the cabinet and sack bin Daghir or face ouster. That deadline came and went without sign that  Hadi  had any intention of complying.
The new fault that has opened between  Hadi  and  his  erstwhile allies in the STC adds another dimension to a war already packed with a dizzying array of players â and a long  tortuous history dating back at least to 1990. That's when South Yemen  a formerly independent state with Aden for its capital  agreed to unification with its northern counterpart. The union has never quite been an easy one  strained by a 1994 civil war and more recently  calls for greater autonomy in the south.
Add to that latent friction the bloodshed of recent years  which has seen Yemen's internal conflicts take on the character of a proxy war among competing powers in the Gulf region. The Houthis  a Shiite group based in the northwest  have been backed by Iran  while Saudi Arabia has led a coalition conducting an air campaign since 2015 supporting  Hadi  and  his  Sunni allies.

Answer: Bloodshed Roils Yemen's South Further Complicating An Already Complicated War : The Two


Question: Michael Reagan  says a dramatically different America where people have stopped caring about each other is to blame for the Valentine's Day massacre at a Florida high school.
"Society has absolutely imploded – society has changed "  Reagan   a veteran political commentator and the oldest son of President Ronald Reagan  told host Miranda Khan on Newsmax TV's "America Talks Live."
It is a far cry   Reagan  said  from when  he  was growing up as a young man in California  the son of famous movie star and future California governor and U.S. president.
"When I went to school back in the 1950s  they had a rifle club  the school provided us rifles and bullets "  Reagan  recalled. "They went hunting in the afternoon  after school. They took their shotguns to school.
 Reagan  is the author of "Lessons My Father Taught Me: The Strength  Integrity  and Faith of  Ronald Reagan  " written with Jim Denney and published by Humanix.

Answer:
Michael Reagan on Shooting: Society Has 'Absolutely Imploded'