The head of the Arizona Senate confirmed this week that an audit of the Maricopa County election in November has identified significant irregularities as well as missing data, with the county itself also being warned of its ongoing noncompliance with the Senate's audit subpoenas. The dispute is likely to boil over in public next week when county election officials have been asked to testify before a Senate hearing to address the legislature's concerns. State Senate President Karen Fann said in a Wednesday letter to the Maricopa County Board of Supervisors that the Senate was seeking resolution to three "serious issues...