2 0 0 7 ▁through ▁ 2 0 1 1 . ▁She ▁has ▁also ▁held ▁the ▁post ▁of ▁House ▁Minor ity ▁Le ader , ▁from ▁ 2 0 0 3 ▁to ▁ 2 0 0 7 ▁and ▁ 2 0 1 1 ▁to ▁ 2 0 1 9 . ▁ ▁Local ▁politics ▁ ▁The ▁city ▁is ▁govern ed ▁by ▁a ▁mayor ▁and ▁an ▁ 1 1 - member ▁Board ▁of ▁Super vis ors , ▁both ▁elected ▁using ▁prefer ential ▁voting . ▁The ▁current ▁mayor ▁is ▁London ▁Bre ed . ▁ ▁H ous ing ▁ ▁H ous ing ▁is ▁a ▁frequent ▁topic ▁in ▁San ▁Francisco ▁politics . ▁▁ ▁San ▁Francisco ▁has ▁the ▁highest ▁housing ▁prices ▁in ▁the ▁United ▁States . ▁As ▁of ▁ 2 0 1 8 , ▁its ▁median ▁house ▁price ▁was ▁$ 1 . 6 1 ▁million , ▁almost ▁twice ▁the ▁average ▁from ▁five ▁years ▁earlier . ▁Many ▁factors ▁contribute ▁to ▁the ▁housing ▁situation ▁in ▁San ▁Francisco . ▁One ▁of ▁the ▁main ▁reasons ▁for ▁this ▁is ▁the ▁lack ▁of ▁available ▁homes ▁to ▁live ▁in . ▁The ▁Bay ▁Area , ▁from ▁ 2 0 1 1 ▁to ▁ 2 0 1 5 , ▁only ▁created ▁ 1 ▁home ▁for ▁every ▁ 8 ▁jobs ▁created . ▁▁ ▁San ▁Francisco ▁has ▁some ▁of ▁the ▁most ▁string ent ▁housing ▁laws ▁in ▁the ▁United ▁States . ▁It ▁ranks ▁ 3 rd ▁among ▁cities ▁in ▁the ▁United ▁States ▁as ▁the ▁hard est ▁city ▁to ▁build ▁in . ▁ ▁It ▁has ▁been ▁estimated ▁by ▁San ▁Francisco ' s ▁chief