How what he did might affect us

He believed in conservation, so if he didn't in force it so much, we may not have forests. He wanted to also protect mineral deposits and water resources. He didn't like trusts, so if he did, we may still have trusts today. His actions affect us a lot today.

How Theodore changed America

He wanted everyone to be treated fairly and just. He wanted quality food for the people. He wanted to help the betterment of humanity, and he expanded government.