In November 2002, after campaigning while still in law school, Rose defeated the Republican incumbent, Rick Green, to win election to the Texas House of Representatives from District 45; his margin of victory was less than 1 percent of all votes cast.
In November 2002, during his studies at law school, Rose succeeded in defeating the Republican incumbent, Rick Green, to secure a seat in the Texas House of Representatives for District 45. His election was decided by a very slim margin of votes.