Beneath The Outer Shell

I am under 45 years old,

I love the outdoors,

I hunt,

I am a Republican reformer,

I have taken on the Republican Party establishment,

I have many children,

I have a spot on the national ticket as vice-president after less than two years in the governor's office.

Do you know who I am?

I am Teddy Roosevelt in 1900

And, I became President of the United States at the age of 42, when McKinley was assassinated.