Everyone says she should pick a Latino, but I'm not too worried about them. Hillary is more popular than Obama with Latinos and the immigration issue is getting bigger with the GOP base. The nominee is almost certainly going to have to pander to them during the primaries, and probably say something incredibly stupid in doing so.
I think people are underestimating the degree to which the Clintons are still controversial in the black community, in more than one poll I've seen Biden does much better in the AA vote than Hillary against potential nominees. Not that they are going GOP, they are just undecided. At the very least, turnout could go down a decent amount with them, and that could be deadly in a close race. A Booker VP slot would be a sign of good faith towards the AA community, and would ensure there's no significant damage there.
Bottom line: I don't Latinos are going to necessarily be more likely to vote for someone simply because there are running with a Latino. However, Hillary picking a black VP could mend any existing rift or suspicion of racism between them and the Clintons.
If this is true (it's not), picking Booker is exactly the type of move I would expect from Republicans, not Democrats.
There is every other reason in the world to
not pick Booker. This is a
horrible idea.