Lieberman is the worst option, so will probably be chosen. He's the guy who pushed the new "intel bill" bureacracy while excising the ban on drivers licenses for illegals.
The best option, Los Angeles County Sheriff Lee Baca (R), doesn't stand a chance. He believes in enforcing immigration laws, having actual border security and changing the non-extradition treaty with Mexico so we can prosecute and punish the hundreds of cop-killers who have fled there.
Oh, excuse me, I guess that has nothing to do with Homeland Security.