Republicans and Obama thinking alike - nothing unusual about that.
Obama, Graham and McCain know that the Russian influence on the election cannot be determined and that it was in all likelihood negligible. They know that Russia and the U.S. spy on each other, with hacking being one tool. They are demagoguing the election issue because this supports other items on their agenda
Read on:
https://www.lewrockwell.com/lrc-blog/obama-graham-mccain-make-political-hay-using-russia-target/