Iran’s president called on President-elect Joe Biden to “compensate for past mistakes” and return the U.S. to Tehran’s 2015 nuclear deal with world powers, a state-run news agency reported Sunday.Hassan Rouhani’s comments mark the highest-level response from Iran to Biden and Vice President-elect Kamala Harris clinching the Nov. 3 election. “Now, an opportunity has come up for the next U.S. administration to compensate for past