It's good to have a Sedgwick County commissioner watchdogging the county jail. But Commissioner Gwen Welshimer's refusal Wednesday to vote for any increase in funding to deal with jail overcrowding seemed petty and stubborn. As other commissioners pointed out, the county has a legal obligation to house and provide basic medical care to inmates. And as Sheriff Robert Hinshaw repeatedly has explained, the Sheriff's Office has very limited ability to reduce the jail population. It must accept all inmates sent to the jail as a result of criminal cases.