Here is the latest Iowa news from The Associated Press

DES MOINES, Iowa (AP) — A federal prosecutor says two top aides to Ron Paul’s 2012 presidential campaign were involved in a “cover-up” when they tried to hide payments to a state lawmaker. Justice Department attorney Jonathan Kravis says email records and testimony will show Jesse Benton and Dimitri Kesari concealed payments to former Iowa Senator Kent Sorenson. Paul is expected to testify during the nearly two-week trial.

DES MOINES, Iowa (AP) — A panel of state budget experts is lowering Iowa revenue projections for the current fiscal year. The Revenue Estimating Conference met Tuesday to project state revenue. The group predicts the state will take in about $7.05 billion for the fiscal year that began July 1st. That’s less than the $7.18 billion they estimated earlier this year.

DES MOINES, Iowa (AP) — A state agency will delay the implementation of a proposed tax break expansion. The Department of Revenue agreed to a request from lawmakers in the administrative rules review committee on Tuesday that the tax change date would be moved from January to July. The Department of Revenue plans to change a law exempting certain items used during manufacturing to broaden the exemption.

AMES, Iowa (AP) — Iowa State University is proposing a three-year, $1,500 tuition surcharge that would affect thousands of international students. Board of Regents documents show the school wants to add an extra $500 annually for three years to the nonresident rates international students already pay. Regents will consider the proposal next week.