(Portland, OR)  --  Initial returns show a wide margin of approval for the 790-million-dollar Portland Public Schools construction bond.  The tally shows 63-percent of voters favored the bond and 37-percent casting "no" votes.  PPS officials say the bond will provide millions of dollars to fund much-needed repairs and improvements to aging schools, and to help mitigate ongoing problems with lead content in school-building water supplies.  Three new members were elected to the school board including Rita Moore in zone 4, Scott Bailey in zone 5 and Julia Brim-Edwards in zone 6.