2 0 0 4 . ▁ ▁Political ▁career ▁Hern ández ▁got ▁her ▁start ▁in ▁the ▁Secret ariat ▁of ▁Fin ances ▁of ▁T lax cala , ▁working ▁her ▁way ▁up ▁to ▁be ▁the ▁secretary . ▁She ▁also ▁worked ▁on ▁g ubern atorial ▁and ▁deput y ▁campaign s ▁in ▁the ▁state , ▁and ▁for ▁a ▁time ▁in ▁the ▁state ▁secret ariat ▁of ▁health . ▁ ▁In ▁ 1 9 9 9 , ▁Hern ández ▁joined ▁the ▁Party ▁of ▁the ▁Democratic ▁Revolution . ▁In ▁ 2 0 0 3 , ▁she ▁was ▁elected ▁to ▁the ▁Chamber ▁of ▁Deput ies ▁as ▁a ▁proportional ▁representation ▁deput y ▁for ▁the ▁L IX ▁Legisl ature . ▁She ▁sat ▁on ▁the ▁comm issions ▁for ▁Bud get ▁and ▁Public ▁Account s ▁and ▁Str ength ening ▁of ▁Federal ism . ▁While ▁in ▁her ▁first ▁term ▁as ▁deput y , ▁she ▁coordin ated ▁fin ances ▁in ▁the ▁PR D ' s ▁primary ▁election ▁for ▁mayor ▁of ▁Mexico ▁City . ▁ ▁In ▁ 2 0 0 6 , ▁she ▁was ▁elected ▁as ▁a ▁sen ator ▁for ▁the ▁L X ▁and ▁L X I ▁Legisl atures . ▁She ▁pres ided ▁over ▁the ▁Administration ▁and ▁Social ▁Security ▁Comm issions ▁and ▁served ▁on ▁eight ▁others , ▁including ▁Fin ances ▁and ▁Public ▁Cred it , ▁Foreign ▁Rel ations / As ia - P ac ific , ▁and ▁Health . ▁ ▁In ▁ 2 0 1 0 , ▁Hern ández ▁ran ▁for ▁Governor ▁of ▁T lax cala ▁as ▁the ▁coal ition ▁candidate ▁for ▁" Trans par ency ▁and ▁Hon esty