LA has been planning for an Olympics bid for a long time. They've already bribed their way into consideration (the only way you'll be considered), they've already dumped public funds into Olympics capable venues, and they have plenty of downtown hotel rooms unlike many American cities. LA has the Rose Bowl, the Colosseum, the new Inglewood Stadium, the Forum, Staples Center, the Galen Center, Stubhub Center, the Aquatics center, and coastal access for golf, swimming, boating, and beach sports. They already have a massive transmission/broadcast capacity with the networks and studios there. They're in the middle of major highway upgrades and the light rail/subways along with existing dedicated bus/carpool lanes could be configured to move things much more smoothly than other major cities. If any US city can deal with everything that the Olympics needs, it's LA. Will there be issues? Of course. Will there be traffic? No doubt. Will there be angry NIMBY idiots? Check. But they've spent a long time already prepping for this and now it's got the backing of some of the biggest media companies on earth as well. Unless Paris can play up the sympathy card, or if the US proves to be so brazen in their anti-immigrant policies, I foresee LA getting the 2024 games easily.
Not to mention that our current President would love nothing more to have a spectacle to shower money on to showcase the greatness of America (just look to his counterpart in Moscow for an example). I can't think of a better waste of money and resources for him to accomplish such a thing. Between LA's real, legitimate offerings and their ability to just bribe the IOC, I'm sure payments/arrangements can be made to assure that LA is chosen for 2024.
Also, keep in mind that the last Olympics to not bleed money was in fact LA 1984. Not that the IOC cares whether or not the Olympics crush and bankrupt the host city/country (we've seen that enough), but that's usually in countries where new venues are needed which isn't the case at all in LA. Their venue budget is less than it would cost to build a single modern stadium!
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