 Regarding public housing , Tufaro called for renovations rather than demolishing vacant buildings , which drew criticism , as Housing Commissioner Daniel P. Henson III pointed out that renovating was more expensive than demolishing . O 'Malley promised to enforce provisions of the Community <unk> Act of 1977 , which require banks to invest in poor neighborhoods . Tufaro further proposed a plan for school <unk> and to drug test students , which drew opposition from the Baltimore Teachers Union and from O 'Malley , who favored expanding pre @-@ kindergarten and after @-@ school programs , while making summer school mandatory . When discussing the problem of HIV / AIDS in Baltimore , which disproportionately affects African Americans , both O 'Malley and Tufaro promised to continue the city 's needle exchange program . 
