Besoin d'aide : rédation en anglais.

Bonjour,
je dois rendre pour mardi une rédaction d'environ 200 mots en anglais: je dois en rédiger un tract visant un convaincre les électeurs de voter pour Barack Obama.
J'aimerais donc que vous m'aidiez à corriger certaines fautes ou que vous me dites ce que vous en pensez.
Merci.

Voters, you must vote for Obama in order to save the united States Of America.
Indeed, the Republican Party, especially Georges W.Bush doesn't believe global warming will be dangerous for the Earth. According to sarah Palin, the climate change is a normal phenomenon. Contrary them, Barack Obama wants to reduce carbon emissions 80% by the year 2050.
Moreover, Mc Cain supported Bush to the war in Iraq who wasted several billions of dollars and killed a lot of innocents whereas Obama thinks that the war can't make the world safer.
Besides, unlike Mc Cain, Obama has got two univerty degrees that's why the eduacation of Obama is better than the education of Mc Cain. Contrary to Obama, Mc Cain has got a military background therefore his foreign policy is based on national security but not enough on diplomacy as a consequence John Mc Cain is a little narrow-minded.
On the other hand, contrary to Mc Cain, Obama believes that all Americans should have health insurance and favours mandatory healthcare coverage for all children therefore obama guaranty equality of all citizens.
To sum up, if John Mc Cain will be the future president of USA it will be a disaster for all Americans.
However, you can prevent this disaster: VOTE FOR OBAMA!