it is a little inappropriate to say to your boss, is this necessary? a little surprised he picked up the exact words from you. That is kind of challenging him as your boss. I always say something before that, like, I am not sure... or something like, sorry, I just thought I need to confirm this with you before going ahead...
Put myself in his shoes, he is new face. Need to set up his authority or influence power there, or just sensible to be challenged by a seasoned staff in this new office.
What you can do right now, is kind of to make the noise in the office. I am not sure you can win something. If I were you, I will keep silent for now. Let the complain to come out from somewhere else if he is really the guy like what you described. Try to be more -cooperative, give each of you a little bit more time and decide what is next step.
My 2 cents. BTW, i am not the senior one. just thinking something like office politics.
Put myself in his shoes, he is new face. Need to set up his authority or influence power there, or just sensible to be challenged by a seasoned staff in this new office.
What you can do right now, is kind of to make the noise in the office. I am not sure you can win something. If I were you, I will keep silent for now. Let the complain to come out from somewhere else if he is really the guy like what you described. Try to be more -cooperative, give each of you a little bit more time and decide what is next step.
My 2 cents. BTW, i am not the senior one. just thinking something like office politics.