1 2 , ▁Ay otte ▁voted ▁with ▁four ▁other ▁Republican ▁sen ators ▁to ▁defeat ▁a ▁proposal ▁to ▁block ▁the ▁Environment al ▁Prote ction ▁Agency ▁from ▁prom ul g ating ▁the ▁first ▁federal ▁standards ▁reg ulating ▁air ▁poll ution ▁from ▁power ▁plants . ▁In ▁ 2 0 1 3 , ▁she ▁voted ▁for ▁a ▁point ▁of ▁order ▁oppos ing ▁a ▁carbon ▁tax ▁or ▁a ▁fee ▁on ▁carbon ▁em issions . ▁ ▁Ay otte ▁was ▁one ▁of ▁two ▁Republican ▁sen ators ▁to ▁vote ▁against ▁a ▁Republican ▁measure , ▁introduced ▁by ▁Roy ▁Bl unt , ▁that ▁sought ▁to ▁block ▁President ▁Ob ama ▁from ▁negoti ating ▁an ▁international ▁agreement ▁on ▁climate ▁change . ▁She ▁voted ▁to ▁fast - track ▁appro val ▁for ▁the ▁Ke yst one ▁X L ▁pipeline ▁project . ▁ ▁In ▁October ▁ 2 0 1 5 , ▁Ay otte ▁became ▁the ▁first ▁con gression al ▁Republican ▁to ▁end or se ▁a ▁measure ▁by ▁President ▁Bar ack ▁Ob ama ▁dub bed ▁the ▁C lean ▁Power ▁Plan , ▁a ▁measure ▁that ▁would ▁see ▁a ▁ 3 2 ▁percent ▁cut ▁in ▁the ▁power ▁sector ' s ▁carbon ▁em issions . ▁That ▁same ▁year ▁she ▁was ▁one ▁of ▁five ▁Republican ▁sen ators ▁to ▁vote ▁to ▁pass ▁a ▁non - binding ▁am end ment ▁stating ▁that ▁" cl imate ▁change ▁is ▁real ▁and ▁human ▁activity ▁significantly ▁cont ributes ▁to ▁climate ▁change ." ▁ ▁Health ▁care ▁Ay otte ▁supports ▁state - admin ister ed ▁health care ▁programs ▁such ▁as ▁S CH IP ▁and ▁federal ▁tax ▁cred its ▁that ▁serve ▁to