I really like VAMOS A VOTAR POR OBAMA. Here's what I got (I think) of the words and their meaning. Help???

VAMOS A VOTAR POR OBAMA
Tu tia, tu abuela y tu mama,
Toda la familia, unida en la canta,
VAMOS A VOTAR POR OBAMA

Let's all go vote for Obama
Your aunt, your granny and your mama
All of the family, united in the song,
Let's all go vote for Obama


Quiero invitar toda la gente
Che nos unimas di corazon y mente
Toda mi familia, unida, y presente --
Obama es nuestro presidente.

I want to invite all the people
Let us unite in heart and mind
All of my family, united, present it --
Obama is our president.

Ay che cominca la nueva era,
mas comida, meno sierra,
Buen economia, medicina,
opportunidas buenas de scuela

Oh, let the new era begin,
More [food, more to eat?], less [hardship?]
Good economy, health care,
Good opportunities for schooling.

[Sorry, I really don't have much of a clue about the next, final verse:]

Vamos a portar nuestro ???
Para cambiar nuestro destino (To change our destiny)
Che Dios no se diga ???
??

CHORUS
VAMOS A VOTAR POR OBAMA
Tu tio, tu abuela y tu mama,
Toda la familia, unida en la canta,
VAMOS A VOTAR POR OBAMA