Former spin doctor from the Blair administration Alistair Campbell is being pretty forthright (Well, as much as he can be on live TV):

Alastair Campbell says Theresa May has “no idea what she is playing with” in seeking a deal with the DUP https://t.co/YtRxj7tGtH #GE2017 pic.twitter.com/n3oTMQbETz

— BBC News (UK) (@BBCNews) June 11, 2017