Rep. Joe DonnellyJoseph (Joe) Simon DonnellyDemocrats now attack internet rules they once embraced Dem group launches M ad buy to boost vulnerable senators Senate rejects Trump immigration plan MORE (D-Ind.) endorsed Barack ObamaBarack Hussein ObamaOvernight Energy: Dems ask Pruitt to justify first-class travel | Obama EPA chief says reg rollback won't stand | Ex-adviser expects Trump to eventually rejoin Paris accord Overnight Regulation: Trump to take steps to ban bump stocks | Trump eases rules on insurance sold outside of ObamaCare | FCC to officially rescind net neutrality Thursday | Obama EPA chief: Reg rollback won't stand Ex-US ambassador: Mueller is the one who is tough on Russia MORE for president today.

In a statement released by Obama's campaign, Donnelly said, "At a time when too many Americans have lost faith in their government, Senator Obama can move us beyond the politics of stalemate and gridlock that has kept us from meeting the monumental challenges of our time: our dependence on foreign oil, a health care gap that leaves tens of millions uninsured, the steady deterioration of our manufacturing base, and an economy that is not working for working people."

Obama has recently shown momentum in the battle for uncommitted superdelegates, picking up over 26 since the day before Indiana and North Carolina Democrats went to the polls (see yesterday's AP story on Obama's superdelegate momentum here).

Obama lost to Hillary ClintonHillary Diane Rodham ClintonWoman behind pro-Trump Facebook page denies being influenced by Russians Trump: CNN, MSNBC 'got scammed' into covering Russian-organized rally Pennsylvania Democrats set to win big with new district map MORE in Donnelly's home state last Tuesday, falling to the New York senator by a margin of 51 percent to 49 percent. Obama carried South Bend, Ind., which falls in Donnelly's district.