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: Sen. Dianne Feinstein  is the favorite among voters over a Democratic challenger in a Public Policy Institute of California poll  Politico reported.
 Feinstein   84  is running for a fifth term as U.S. senator. Two-thirds of likely voters said they had not heard of de LeÃ³n or did not know enough about him to have an opinion  according to the poll.
 Feinstein  won out over de LeÃ³n among Democrats  independent voters  men  women  and people of all racial and ethnic groups  Politico reported.
In California  the top two vote-getters in a June primary will compete in the November primary  no matter their party affiliation. No prominent Republican has announced a run for  Feinstein 's position  Politico noted.

Poll: Sen. Dianne Feinstein Leading in Primary