"Let's give him a chance" only works if there's doubts about his policies. I know I don't want socialized medicine in this country and that's his plan. I know, because it's been historically proven, that increasing capital gains taxes will harm the economy and cost jobs. I know that increasing the minimum wage results in job losses and is primarily a tactic to increase union wages.
I don't need to give the man a chance to know I don't want him doing these things.