You never said it was posted here. More delays from you. You made the claim, back it up or I will just take it to mean that you have no support for your bogus claim that not voting for Romney will VOID my entire ballot.
Other races do not depend upon who I vote for for POTUS.
There seems to be a lot of confusion on this.
I check (on the web) numerous county clerks offices from many states.
It appears that the only thing you need to be concerned about is if you mark a straight party ticket and then write in the name. Once, you write in a name, the straight party ticket becomes invalid. So, just mark every selection individually and there should be no problem.