Who am I?

Sent to me in an e-mail

• 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 with less than two years in the governor's office.

Did you guess?

Check the comments for the answer...