Biden isn't embracing campus protests. It's not just because he's staunchly pro-Israel.

• Joe Biden has tried to stake out a middle ground as protests spread across college campuses.
• Polling shows that the protests are unpopular.
• At the same time, Biden needs to keep his coalition of voters intact to win reelection.

As protests against Israel's war in Gaza have popped up on college campuses nationwide — at times devolving into chaos and violence — it's not surprising that President Joe Biden hasn't publicly embraced them.