By Carmen FormanStaff writercforman@oklahoman.comThe Oklahoma House has hired a former Republican speaker to help with the upcoming redistricting process.House Speaker Charles McCall, R-Atoka, announced Monday the hiring of former Speaker T.W. Shannon to serve as the chamber's public liaison on redistricting.Shannon will help solicit public input on how House legislative districts should look for the next decade and build bridges between the public and legislators throughout the redistricting process that occurs following the U.S.