WASHINGTON -- Sen. Marco Rubio is preparing to give his first speech from the floor of the U.S. Senate.

The Florida Republican's office says Tuesday's speech will lay out the lawmaker's vision for America, its challenges and its opportunities. Rubio, who took office in January, will discuss how the United States can maintain its position in the world through the 21st century.

Rubio's office gave part of the speech early to The Associated Press. It says, "A new American century is within our reach. There is nothing wrong with our people. Americans haven't forgotten how to start a business. They haven't run out of good ideas."

The speech says the United States is at a turning point in history and that the wrong choices could lead to America's decline.