The battle to replace Senate Minority Whip Dick Durbin in Illinois is intensifying with Rep. Raja Krishnamoorthi on Wednesday jumping into a crowded primary that has divided key Democratic factions in the blue state.

Ill.,is running for the senate seat held by longtime lawmaker Sen. Dick Durbin, who recently announced that he would not seek another term.

Raja Krishnamoorthi has announced his bid to run for Senate, confirming speculations that he would join the field looking to win the seat left open by Dick Durbin.