No. The US president MUST have US citizenship only.
He will become a dual citizen of the uK and the US.
The US recognizes dual citizenship.
That would be unlikely, perhaps if he had dual citizenship. But he would have to be a citizen of the country he was president of.
she have to marry again in israeli
I think that if your father was (and/or still is) a US citizen, then you are also a US citizen no matter where you were born. It should be rather easy to get an american passport in the US embassy or consulate in the phillipines for you. As for your mother, I believe that she has to apply for a US visa or "green card" based on her marriage to your father who was/is a US citizen, or thru your US citizenship if you are over 21 years old.
By law, the US doesn't recognize dual citizenship (i.e. constitution prevents dual nationality) but somehow it always does recognize it.
Yes dual citizenship is allowed for US citizens.
Some countries will claim the child has dual citizenship (see links below), however, while the US does recognize dual citizenship, any child born to US parents ANYWHERE is considered solely a US citizen
Yes.
Spain does not have dual citizenship agreement with the US.
If you apply for citizenship in another country your US citizenship is automatically revoked. The US does not recognize dual citizenship. You revoke it in writing at a US embassy, outside the US.
If you have dual citizenship, yes you can.