Senate Republicans won't be happy about this, but there's not a lot they can do, via the Washington Post:
National security adviser Thomas E. Donilon will resign his post, White House officials said Wednesday, and will be replaced by U.N. Ambassador Susan E. Rice, a close confidant of President Obama with deep foreign policy experience who is disliked by Republicans but had been widely expected to move into the job.
White House officials said Donilon’s resignation will take effect early next month. A seasoned Washington insider, Donilon has held senior national security posts in the administration since Obama took office, rising from the principal deputy national security adviser to his current job.
Rice had to withdraw her name from consideration as secretary of state late last year after Senate Republicans continually blasted her for her response in the aftermath of Benghazi. Her new post, however, does not require Senate confirmation, something John McCain appears to be making his peace with.
Obviously I disagree w/ POTUS appointment of Susan Rice as Nat'l Security Adviser, but I'll make every effort to work w/ her on imp't issues— John McCain (@SenJohnMcCain) June 5, 2013