Delaney is pro-choice.
Delaney has a climate change plan however he does not mention the 2030 target as stated by the IPCC. His plan does regard the 2050 zero emissions target by the IPCC but his Carbon Fee and Dividend proposal would reduce emissions by 90%. He acknowledges that more solutions would be needed to reach zero emissions by 2050.
According to questions from 538, Delaney does not support marijuana legalization.
According to his website he does support overturning Citizens United. He does not mention anything else about campaign finance reform or breaking up monopolies.