two-thirds majority of both houses.

is that 2/3 of house + 2/3 of senate or 2/3 of house + senate

It means 2/3 of both the house, and the senate.

bob, i'm still a little confused. is it my first answer or the second?

It is 2/3 of each part of Congress. It cannot be the combined fraction.

I hope that this helps a little more. Thanks for asking.

gracias.

De nada. Estoy aquí para ayudar. Si tienes alguna otra pregunta, no dudes en hacerla.