(CNN) - Barack Obama's campaign announced Wednesday Indiana Rep. Baron Hill has endorsed the Illinois senator - the fourth new superdelegate the campaign has announced in the last 24 hours.
"If we are going to develop real solutions for Hoosier families, for America’s families, we have to move past the partisan gridlock," Hill said in a statement released by the Obama campaign. "I believe both Senator Clinton and Senator Obama want to do that and I believe both are formidable candidates. But, I also believe that only one of them truly can."
The Clinton campaign has announced three new superdelegates in the last 24 hours. More than 300 have yet to publicly back a candidate.