to which state was he a senator?
Ohio
Warren G. Harding
Harding began his four years as a state senator as a political unknown; he ended them as one of the most popular figures in the Ohio Republican Party. 
who is warren g. harding? He was the 29th president of the United States when did he become president of the united states? 1921 who was the 28th president of the united states? UNANSWERABLE
wiki:19641756
Warren G. Harding [SEP] State senator
He arranged for his sister Mary (who was legally blind) to be appointed as a teacher at the Ohio School for the Blind, although there were better-qualified candidates. In another trade, he offered publicity in his newspaper in exchange for free railroad passes for himself and his family. According to Sinclair, "it is doubtful that Harding ever thought there was anything dishonest in accepting the perquisites of position or office. Patronage and favors seemed the normal reward for party service in the days of Hanna."