Facts:   - jr/sr: united states senator    - birth name: mark emery udall    - state house: colorado    - party: democratic    - predecessor: wayne allard david skaggs peggy lamm      - birth date: 18 july 1950    - spouse: maggie fox    - district: colorado 2 2nd 13th    - term end: january 3 , 2015 january 3 , 2009 1998    - name: mark udall    - birth place: tucson , arizona , u.s.    - signature: mark udall signature.svg    - successor: cory gardner jared polis tom plant    - state: colorado colorado    - alma mater: williams college    - children: jebediah tess    - term start: january 3 , 2009 january 3 , 1999 1996    - image: markudall-senate portrait.jpg   Based on these bullet points, write a short biography describing the life of mark udall .
The answer to this question is:
mark emery udall -lrb- born july 18 , 1950 -rrb- is an american politician who was a united states senator from colorado from 2009 to 2015 .he previously served in the united states house of representatives , representing .prior to being elected to congress , he represented parts of boulder , colorado in the colorado house of representatives .a member of the democratic party , throughout his career he has proposed legislation to support renewable energy , expand national parks , and protect natural resources .born in tucson , arizona , he is the son of former u.s. representative morris `` mo '' udall .a member of the udall family , a western american political family , his relatives include new mexico 's tom udall and utah 's mike lee .udall ran in 2014 for a second term in the u.s. senate , but was defeated by republican cory gardner .