Obama dips into midterm election with first endorsements

By John WhitesidesWASHINGTON (Reuters) - Former U.S. President Barack Obama dipped into November's midterm election fight for the first time on Wednesday, endorsing 81 Democrats in 14 states with a focus on young, diverse candidates and lower-level races.Obama, whose relatively low political profile since leaving office last year has frustrated some fellow Democrats, described the list as a first wave of endorsements and said he was eager to campaign this fall to "make the case for why Democrati