(1) Nothing in this part 5 or in any reapportionment plan shall be construed to cause the removal of any senator from his or her office for the term for which the senator was elected, and each such senator shall serve the term for which he or she was elected.
(2) If any senator elected at the 2010 general election vacates his or her seat prior to the convening of the regular legislative session in 2013, such vacancy shall be filled from the district from which the senator was elected in accordance with section 1-12-203, C.R.S. If such vacancy occurs more than fifty-five days before the general election in 2012, there shall be an election at the general election in 2012 for the remainder of such senator's term from the senatorial district created by the commission. Nomination of candidates at such election shall be in accordance with article 4 of title 1, C.R.S.
(3) If any senator elected at the 2010 general election vacates his or her seat on or after the convening of the regular legislative session in 2013, such vacancy shall be filled from the senatorial district created by the commission in accordance with section 1-12-203, C.R.S.