[Fightin Whitey]

If the Senate goes into recess for more than 10 days he can, and he would serve until the end of the term of that Congress.

Here is a synopsis provided by the website Scotusblog.

If a recess nominee were to make it through the screwy Senate rules, it appears he would serve only through the next session of the Senate, not a full term.

[Az Joe]

Ok, so he would serve until December 2017