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Input: Republican Gov. Bruce Rauner and Democratic candidate J.B. Pritzker  each lead  their  closest primary rival by double digits with the primary election about three weeks away  a new poll from the Paul Simon Public Policy Institute at Southern Illinois University at Carbondale shows.
Internal polling in the Republican governor primary may be behind Raunerâs decision to switch TV ad tactics away from attacking Ives and back to attacking  Pritzker .
The Rauner campaign launched a new ad based on an old theme  a government-recorded conversation  Pritzker  had with now-imprisoned ex-Gov. Rod Blagojevich over filling the U.S. Senate vacancy after Barack Obama was elected president. The recording was obtained by the Tribune  which published a Feb. 5 story that included portions of the call.
The ad features  Pritzker  telling Blagojevich that of potential African-American politicians to replace Obama  âthe one thatâs least offensive and maybe gets you the most because it gets you that secretary of state appointment is Jesse White.â
The ad ends with a photo of  Pritzker  and the phrase: âThe least offensive?â
White has stuck by his endorsement of  Pritzker .
Rauner hits  Pritzker  with Blagojevich wiretap ad   Pritzker  responds with veterans' deaths spot Â»
Biss   Pritzker  clash over whoâs bigger Madigan ally; Kennedy sits out debate with bad back Â»

SIU poll: Republican Gov. Rauner Democratic candidate Pritzker lead governor races