The mayor of Ames vetoed an ordinance that carves out exemptions to the city's rental occupancy cap. John Haila sent the City Council a letter explaining his veto, saying an exemption added last Tuesday was inconsistent with the council goal of balancing owner-occupied and rental homes in areas near the Iowa State campus. Haila says he believes exempting rentals in owner-occupied homes from the cap compromises the "spirit and principal" of what the city is trying to accomplish. State law allows mayors to veto ordinances within 14 days of passage. The City Council can override the mayor's veto within 30 days but it takes a two-thirds majority of the six-member council to approve it.